Delegated License Service User Guide

NVIDIA Delegated License Service User Guide

Documentation for system administrators that explains how to install, configure, and manage the Delegated License Service.

The NVIDIA License System is used to provide software licenses to licensed NVIDIA software products. The licenses that the NVIDIA License System provides are obtained from the NVIDIA Licensing Portal.

1.1. Introduction to NVIDIA Software Licensing

To activate licensed functionalities, a licensed client must obtain a software license when it is booted.

NVIDIA License System supports the types of licensing for licensed clients:

• Networked-licensing: A client with a network connection obtains a license by leasing it from a NVIDIA License System service instance. The service instance serves the license to the client over the network from a pool of floating licenses obtained from the NVIDIA Licensing Portal. The license is returned to the service instance when the licensed client is shut down.
• Node locked-licensing: A client system without a network connection or on an air-gapped network can obtain a node-locked NVIDIA vGPU software license from a file installed locally on the client system.
  Note:

  Support for node-locked licensing was introduced in NVIDIA vGPU software 15.0. It is not supported in earlier NVIDIA vGPU software releases.

1.2. About Service Instances

A service instance is required to serve licenses to licensed clients.

NVIDIA License System supports the following types of service instances:

• Cloud License Service (CLS) instance. A CLS instance is hosted on the NVIDIA Licensing Portal.
• Delegated License Service (DLS) instance. A DLS instance is hosted on-premises at a location that is accessible from your private network, such as inside your data center.

To provide isolation for performance, security, and ease of administration, you can deploy multiple service instances as needed. For example, you can deploy service instances in distinct physical locations by deploying a DLS instance in each of your data centers. You can also use a mixture of CLS and DLS instances to serve your licenses to licensed clients.

1.2.1. About Cloud License Service (CLS) Instances

A Cloud License Service (CLS) instance is hosted on the NVIDIA Licensing Portal.

Because a CLS instance is hosted on the NVIDIA Licensing Portal, you do not need to download licenses from the NVIDIA Licensing Portal and upload them to the instance.

Hosting a CLS instance on a cloud service provides robustness and dynamic scalability for the CLS instance. Because a CLS instance is maintained by NVIDIA and the cloud service provider, feature and maintenance updates are generally transparent to users.

1.2.2. About Delegated License Service (DLS) Instances

A Delegated License Service (DLS) instance is hosted on-premises at a location that is accessible from your private network, such as inside your data center.

Because a DLS instance is fully disconnected from the NVIDIA Licensing Portal, you must download licenses from the NVIDIA Licensing Portal and upload them to the instance manually.

1.3. High Availability for NVIDIA License System DLS Instances

To provide licensed clients with continued access to licenses if a DLS instance fails, you can configure DLS instances for high availability.

High availability requires two DLS instances in a failover configuration:

• A primary DLS instance, which is actively serving licenses to licensed clients
• A secondary DLS instance, which acts as a backup for the primary DLS instance

Configuring two DLS instances in a failover configuration increases availability because simultaneous failure of two instances is rare. The primary and secondary license DLS instances work together to ensure that licenses in the enterprise remain continually available to licensed clients.

If the primary DLS instance fails, failover occurs. The secondary DLS instance becomes the primary instance and begins to serve licenses. The DLS instance that failed becomes the secondary instance when it is returned to service. The next time that failover occurs, the roles of the primary DLS instance and secondary DLS instance are reversed again.

During normal operation, the primary DLS instance continually updates the secondary DLS instance with information about the licenses that are being served to clients.

For more information about configuring DLS instances for high availability, see Configuring an HA Cluster of DLS Instances.

To simplify the installation and administration of the DLS, the DLS is distributed as a software image to be installed or deployed on a supported platform. The DLS is a secure, hardened environment in which access to the application software is strictly controlled.
The following types of DLS software image are available:

• A virtual appliance image to be installed in a VM on a supported hypervisor
• A containerized software image for bare-metal deployment on a supported container orchestration platform

Each DLS software image is configured with a single standard user account for accessing the DLS appliance and an account with sudo user privileges for installing updates to the DLS appliance software. Modifications to these accounts are strictly controlled. You cannot add other user accounts to the software image. However, you can use a lightweight directory access protocol (LDAP) directory instead of the configured accounts for managing user access to a DLS appliance.

In each VM-based virtual appliance image, the DLS application software is containerized to allow limited access to the OS so that non-root users can install security compliance and scanning tools in the VM. However, a container orchestration platform cannot control or restrict access to the OS on which the platform is running. As far as possible, the container-based and VM-based DLS appliances are functionally equivalent. Therefore, whether to use a container-based or VM-based DLS appliance depends on whether a container orchestration platform or hypervisor best meets the requirements of your IT infrastructure. For additional guidelines, refer to the following resources from the vendors of platforms that support NVIDIA License System:

• Citrix: Containers or Virtual Machines? It Doesn’t Have to Be One or the Other.
• Microsoft: Containers vs. virtual machines
• Red Hat: Containers vs VMs
• VMware: Why use containers vs. VMs?

2.1. Platform Requirements for a DLS Virtual Appliance or Containerized DLS Software Image

Before proceeding, ensure that you have a platform suitable for hosting a DLS virtual appliance or containerized DLS software image.

• The hosting platform must be a physical host running a supported hypervisor or container orchestration platform.
• The minimum resource requirements for the VM in which the DLS virtual appliance or DLS container will run is as follows:
  • Number of vCPUs: 4
  • RAM: 8 Gbytes
  • Disk Size: 10 Gbytes

  For additional guidelines, refer to Sizing Guidelines for a DLS Appliance.

• The platform must have a fixed (unchanging) IP address. The IP address may be assigned dynamically by DHCP or statically configured, but must be constant.
• The platform’s date and time must be set accurately. NTP is recommended.

2.2. Host Name Resolution Requirements for a DLS Virtual Appliance

The platform that hosts a DLS virtual appliance must be identified by its IP address or its fully qualified domain name. It can also be identified by its CNAME. If you want to identify the platform by its fully qualified domain name, ensure that the required DNS entries are set before installing the DLS virtual appliance. If you want to identify the platform by its default host name, you must set a DNS entry that maps the default host name to the fully qualified domain name.

The process for setting these DNS entries is separate from the process for installing the DLS virtual appliance. Use the standard interfaces of the name resolution service that you are using to set the required DNS entries.

Determining Whether the Forward Pointer and Reverse Pointer DNS Entries Are Correct

For each mapping between a domain name and an IP address, ensure that you set both the forward pointer and reverse pointer DNS entries. A DLS virtual appliance requires the reverse pointer entry to determine the domain name of the DLS virtual appliance when creating a client configuration token.

To determine whether the forward pointer and reverse pointer DNS entries have been set correctly, type the following commands in a shell on any UNIX or Linux host on the same network as the DLS virtual appliance:

• For the forward pointer entry, type:

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  $ host domain-name
          

  domain-name

  The domain name for which you want to determine whether the forward pointer DNS entry is correct.

  If the DNS entry has been set correctly, the command displays the IP address that is mapped to the domain name.

• For the reverse pointer entry, type:

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  $ host ip-address
          

  ip-address

  The IP address for which you want to determine whether the reverse pointer DNS entry is correct.

  If the DNS entry has been set correctly, the command displays the domain name that is mapped to the IP address.

How a DLS Instance Determines Whether a Fully Qualified Domain Name Is Set

How a DLS instance determines whether a fully qualified domain name is set depends on the type of DLS instance.

• VM-based DLS virtual appliance: When the VM that hosts a DLS instance starts, the DLS instance checks whether a fully qualified domain name is mapped to the IP address of the VM. If a name is mapped to the IP address of the VM, the DLS instance retrieves the name to display in the user interface of the NVIDIA Licensing application on the appliance.

• Containerized DLS Software Image: The fully qualified domain name is set through an environment variable. When the container within which the DLS software image is deployed is started, the DLS instance checks whether this environment variable is set.

  Note:

  Licensed clients outside the container must be able to resolve the fully qualified domain name. The environment variable must not specify a name that can be resolved only by the container orchestrator.

  • If this environment variable is set, the DLS instance retrieves the name to display in the user interface of the NVIDIA Licensing application on the appliance.
  • If this environment variable is not set, a user cannot connect to the container in which the DLS software image is deployed through a fully qualified domain name, even if a fully qualified domain name is mapped to an IP address in the DNS server.

  For more information, refer to Setting Properties for a Containerized DLS Software Image.

How the Host Name of the VM or Container that Hosts a DLS Instance Is Set

How the host name of the VM or container that hosts a DLS instance is set depends on the type of DLS instance.

• VM-based DLS virtual appliance: The host name is preset in the virtual appliance image.
  • The host name of a standalone DLS virtual appliance is preset to nls-si-0.
  • The host names of the DLS virtual appliances in an HA cluster are preset to nls-si-0 and nls-si-1.

  The host name can be changed as explained in Changing the Host Name of a VM-Based DLS Virtual Appliance.

• Containerized DLS Software Image: The host name is set through an environment variable. If this environment variable is not set, the container orchestration platform sets the host name to the container ID. For more information, refer to Setting Properties for a Containerized DLS Software Image.
• CNAME Identification: The platform that hosts a DLS virtual appliance can also be identified by its CNAME.

2.3. Communications Ports Requirements

To enable communication between a licensed client and a CLS or DLS instance, specific ports must be open in your firewall or proxy server. If you are using an HA cluster of DLS instances with a firewall or proxy server between the DLS instances, additional ports must be open in your firewall or proxy server.

Communications Ports Between a Licensed Client and a CLS Instance

Communications Ports Between a Licensed Client and a DLS Instance

Communications Ports Between DLS Instances in an HA Cluster

If you are using an HA cluster of DLS instances with a firewall or proxy server between the DLS instances, the following ports must also be open in the firewall or proxy server:

✔ Port is used.

- Port is not used.

The following ports that were required to be open in earlier releases are no longer used:

• 22
• 1883
• 5672
• 8883
• 15672
• 25671
• 25672
• 61613
• 61614

Communications Ports in the Container Orchestrator

The following ports must be available in the container orchestrator to allow the DLS appliance container to bind to them:

2.4. Sizing Guidelines for a DLS Appliance

Use the measured performance numbers to determine the optimum configuration for your container-based or VM-based DLS appliances based on the expected number and frequency of requests from licensed clients.

2.4.1. Throughput for a DLS Appliance

Throughput measures the number of clients that a VM-based or container-based DLS appliance can process in 1 second.

2.4.2. Scalability for a DLS Appliance

Scalability measures the maximum number of licensed clients that a VM-based or container-based DLS appliance can serve in a specific interval. A DLS appliance serves a licensed client by performing a licensing operation for the client, namely the borrowing, return, or renewal of a license. Registration of a licensed client is not considered a licensing operation because it occurs only once for any client.

These measurements capture the maximum number of licensed clients that DLS appliances with varying numbers of vCPUs and amounts of RAM can serve when licenses are borrowed for 12 hours.

2.4.3. Burst Load Performance for a DLS Appliance

Burst load performance measures the time that a VM-based or container-based DLS appliance requires to process the requests received from a large number of clients in a short interval of time. Burst load performance does not measure concurrency or throughput.

2.5. Installing a VM-Based DLS Virtual Appliance

To simplify the installation process, a VM-based DLS virtual appliance is supplied as a virtual appliance image to be installed on a supported hypervisor.

After verifying the requirements in Platform Requirements for a DLS Virtual Appliance or Containerized DLS Software Image and reviewing the guidelines in Sizing Guidelines for a DLS Appliance, install and configure the DLS virtual appliance by following this sequence of instructions:

1. Installing the DLS Virtual Appliance Image on a Supported Hypervisor
2. If necessary: Setting the IP Address of a DLS Virtual Appliance from the Hypervisor
3. Registering the DLS Administrator User
4. Optional: Creating an HA Cluster of DLS Instances
5. Optional: Setting the Static IP Address of a DLS Virtual Appliance

2.5.1. Installing the DLS Virtual Appliance Image on a Supported Hypervisor

DLS virtual appliance images are available for several hypervisors. You use standard interfaces of the hypervisor to install the DLS virtual appliance on your chosen hypervisor.

The DLS virtual appliance image for each supported hypervisor except Red Hat Enterprise Linux KVM specifies the minimum configuration for the VM as listed in Platform Requirements for a DLS Virtual Appliance or Containerized DLS Software Image. You are not required to specify the VM configuration when you install the DLS virtual appliance for these hypervisors. After installing the DLS virtual appliance, you can use standard interfaces of the hypervisor to change the configuration of the VM if necessary.

2.5.1.1. Installing the DLS Virtual Appliance on Citrix Hypervisor

The DLS image for Citrix Hypervisor is distributed as a ZIP archive that contains an XVA file, which is a format that is specific to Xen-based hypervisors.

Use the Citrix XenCenter Import wizard to perform this task on the Citrix Hypervisor host on which you want to run the DLS virtual appliance.

For additional information, see Import VMs From XVA on the Citrix product documentation website.

1. Download the ZIP archive that contains the XVA file that contains the DLS virtual appliance image to the hypervisor host.
2. Extract the contents of the ZIP archive that you downloaded.
3. In Citrix XenCenter, from the File menu, choose Import.
4. Browse for and select the downloaded XVA file, and click Next.
5. Select the server on which the imported VM will be placed and click Next.
6. Select the storage repository where the virtual disks for the newly imported VM will be stored and click Import.
7. Select the default virtual network interfaces in the template for the virtual appliance and click Next.
8. Review the settings for importing the virtual machine and click Finish to create the virtual machine.
9. Start the VM that you created.

Allow approximately 15 minutes after the VM is started for the installation of the DLS virtual appliance to complete and for the DLS virtual appliance to start. What to do after the DLS virtual appliance starts depends on whether the VM has been assigned an IP address automatically, for example, by a DHCP server:

• If the VM has been assigned an IP address, what to do next depends on whether you are performing a new installation or are upgrading an existing DLS instance:

  • If you are performing a new installation, register the DLS administrator user on the appliance as explained in Registering the DLS Administrator User.
  • If you are upgrading an existing DLS instance, migrate the existing DLS instance as explained in Migrating a DLS Instance.

• Otherwise, set the IP address of the DLS virtual appliance from the hypervisor as explained in Setting the IP Address of a DLS Virtual Appliance from the Hypervisor.

2.5.1.2. Installing the DLS Virtual Appliance on Microsoft Windows Server with Hyper-V

The DLS image for Microsoft Windows Server with Hyper-V is distributed as a ZIP archive.

Use Hyper-V Manager to perform this task on the Microsoft Windows Server with Hyper-V host on which you want to run the DLS virtual appliance.

For additional information, see Import a Virtual Machine on the Microsoft documentation website.

1. Download the ZIP archive that contains the DLS virtual appliance image to the hypervisor host.
2. Extract the contents of the ZIP archive that you downloaded.
3. From the Hyper-V ManagerActions menu, choose Import Virtual Machine.
4. Browse for and select the folder to which you extracted the DLS virtual appliance image and click Next.
5. When prompted to choose the type of import, select the Copy the virtual machine (create a new unique ID) option and click Next.

6. Browse for and select the folders in which you want to store virtual machine (VM) files and click Next.

   

7. Browse for and select the folder for storing the virtual disk.
   Note:

   If you are creating two VMs for a cluster of DLS instances, ensure that you choose a unique folder for each VM to prevent errors from Hyper-V Manager.

8. Review the settings for importing the VM and click Finish to create the VM.
9. After the VM has been created, specify the virtual switch that the VM should use.
   1. From the Actions menu under the name of the imported VM, choose Settings.
   2. Under Hardware in the left navigation bar of the Settings window, select Network Adapter, select the virtual switch from the Virtual switch drop-down list, and click Apply.
10. Start the imported VM.
    1. From the Actions menu under the name of the imported VM, choose Connect.
    2. In the Virtual Machine Connection window that opens, click Start.

A command window opens when the installation of the imported VM is started. Use this window to log in to the DLS virtual appliance only if you need to set the IP address of the DLS virtual appliance from the hypervisor.
Allow approximately 15 minutes after the VM is started for the installation of the DLS virtual appliance to complete and for the DLS virtual appliance to start. What to do after the DLS virtual appliance starts depends on whether the VM has been assigned an IP address automatically, for example, by a DHCP server:

• If the VM has been assigned an IP address, what to do next depends on whether you are performing a new installation or are upgrading an existing DLS instance:

  • If you are performing a new installation, register the DLS administrator user on the appliance as explained in Registering the DLS Administrator User.
  • If you are upgrading an existing DLS instance, migrate the existing DLS instance as explained in Migrating a DLS Instance.

• Otherwise, set the IP address of the DLS virtual appliance from the hypervisor as explained in Setting the IP Address of a DLS Virtual Appliance from the Hypervisor.

After the VM has started, you can get its IP address from the Networking tab for the VM in Hyper-V Manager.

2.5.1.3. Installing the DLS Virtual Appliance on Red Hat Enterprise Linux KVM

The DLS image for Red Hat Enterprise Linux KVM is distributed as a ZIP archive that contains a QEMU copy-on-write (QCOW2) image file. After preparing the QCOW2 file, install the image by using Virtual Machine Manager to create a VM from the QCOW2 file.

Perform this task from the hypervisor host.

1. Download the ZIP archive that contains the QCOW2 image file to the hypervisor host.
2. Extract the contents of the ZIP archive that you downloaded.
3. Copy the QCOW2 image file to the /var/lib/libvirt/images directory on the hypervisor host.
4. Start Virtual Machine Manager.
5. Add a connection to the hypervisor host.
   1. In the Virtual Machine Manager window, from the File menu, choose Add Connection.
   2. In the Add Connection window that opens, set the options in the following table and click Connect.

      Option	Setting
      Hypervisor	From the drop-down list, select QEMU/KVM.
      Connect to remote host over SSH	Select this option.
      User Name	In this text-entry field, type root.
      Hostname	In this text-entry field, type the IP address or the fully qualified host name of the Red Hat Enterprise Linux KVM host.

   The connection is added to the Virtual Machine Manager window.

6. Context click the connection that you added in the previous step and choose New. The Create a new virtual machine wizard starts.
7. In the first New VM window, select the Import existing disk image option and click Forward.
8. In the second New VM window, import the downloaded QCOW2 image file and choose the operating system to install.
   1. Click Browse.
   2. In the Choose Storage Volume window that opens, select the downloaded QCOW2 image file and click Choose Volume.
   3. Back in the second New VM window, type Ubuntu 20.04 in the search box and from the list of operating systems that opens, select Ubuntu 20.04 (ubuntu).
   4. Click Forward.
9. In the third New VM window, set Memory to 8192 MiB and CPUs to 4, and click Forward.
10. In the final New VM window, specify the VM name and the network that the VM will use.
    1. In the Name text-entry field, type your choice of name for the VM that you are creating.
    2. Select the Customize configuration before install option.
    3. From the Network Selection drop-down list, select the network that the VM will use.
    4. Click Finish.
11. In the window for reviewing a new VM, modify the VM as follows.
    1. Change the display server to VNC Server. In the left navigation bar, select Display Spice and from the Type drop-down list, select VNC Server.
    2. Remove USB Redirector 1, USB Redirector 2, and Channel spice. For each item to remove, context-click the item in the left navigation bar and from the menu that pops up, choose Remove Hardware.
    3. Change Video QXL to VGA. In the left navigation bar, select Video QXL and from the Model drop-down list, select VGA.
12. Click Apply to save your changes to the configuration and click Begin Installation.
13. After the VM is created, start the VM and log in to the VM to get the IP address of the VM. You must log in to the VM to get its IP address because the IP address is not shown in the Virtual Machine Manager console.
    1. Click the play button to start the VM on the hypervisor host.
    2. Use the command window that opens when the VM starts to log in to the DLS virtual appliance as the dls_system user. You don't need to provide a password to log in as the dls_system user.
    3. Get the address of the VM.
       Copy

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       $ ip addr
               

Allow approximately 15 minutes after the VM is started for the installation of the DLS virtual appliance to complete and for the DLS virtual appliance to start. What to do after the DLS virtual appliance starts depends on whether the VM has been assigned an IP address automatically, for example, by a DHCP server:

• If the VM has been assigned an IP address, what to do next depends on whether you are performing a new installation or are upgrading an existing DLS instance:

  • If you are performing a new installation, register the DLS administrator user on the appliance as explained in Registering the DLS Administrator User.
  • If you are upgrading an existing DLS instance, migrate the existing DLS instance as explained in Migrating a DLS Instance.

• Otherwise, set the IP address of the DLS virtual appliance from the hypervisor as explained in Setting the IP Address of a DLS Virtual Appliance from the Hypervisor.

2.5.1.4. Installing the DLS Virtual Appliance on Red Hat Virtualization

The DLS image for Red Hat Virtualization is distributed as a ZIP archive that contains a QEMU copy-on-write (QCOW2) image file. After preparing the QCOW2 file, install the image by using Virtual Machine Manager to create a VM from the QCOW2 file.

Perform this task from the hypervisor host.

1. Download the ZIP archive that contains the QCOW2 image file to the hypervisor host.
2. Extract the contents of the ZIP archive that you downloaded.
3. Copy the QCOW2 image file to the /var/lib/libvirt/images directory on the hypervisor host.
4. Start Virtual Machine Manager.
5. Add a connection to the hypervisor host.
   1. In the Virtual Machine Manager window, from the File menu, choose Add Connection.
   2. In the Add Connection window that opens, set the options in the following table and click Connect.

      Option	Setting
      Hypervisor	From the drop-down list, select QEMU/KVM.
      Connect to remote host over SSH	Select this option.
      User Name	In this text-entry field, type root.
      Hostname	In this text-entry field, type the IP address or the fully qualified host name of the Red Hat Enterprise Linux KVM host.

   The connection is added to the Virtual Machine Manager window.

6. Context click the connection that you added in the previous step and choose New. The Create a new virtual machine wizard starts.
7. In the first New VM window, select the Import existing disk image option and click Forward.
8. In the second New VM window, import the downloaded QCOW2 image file and choose the operating system to install.
   1. Click Browse.
   2. In the Choose Storage Volume window that opens, select the downloaded QCOW2 image file and click Choose Volume.
   3. Back in the second New VM window, type Ubuntu 20.04 in the search box and from the list of operating systems that opens, select Ubuntu 20.04 (ubuntu).
   4. Click Forward.
9. In the third New VM window, set Memory to 8192 MiB and CPUs to 4, and click Forward.
10. In the final New VM window, specify the VM name and the network that the VM will use.
    1. In the Name text-entry field, type your choice of name for the VM that you are creating.
    2. Select the Customize configuration before install option.
    3. From the Network Selection drop-down list, select the network that the VM will use.
    4. Click Finish.
11. In the window for reviewing a new VM, modify the VM as follows.
    1. Change the display server to VNC Server. In the left navigation bar, select Display Spice and from the Type drop-down list, select VNC Server.
    2. Remove USB Redirector 1, USB Redirector 2, and Channel spice. For each item to remove, context-click the item in the left navigation bar and from the menu that pops up, choose Remove Hardware.
    3. Change Video QXL to VGA. In the left navigation bar, select Video QXL and from the Model drop-down list, select VGA.
12. Click Apply to save your changes to the configuration and click Begin Installation.
13. After the VM is created, start the VM and log in to the VM to get the IP address of the VM. You must log in to the VM to get its IP address because the IP address is not shown in the Virtual Machine Manager console.
    1. Click the play button to start the VM on the hypervisor host.
    2. Use the command window that opens when the VM starts to log in to the DLS virtual appliance as the dls_system user. You don't need to provide a password to log in as the dls_system user.
    3. Get the address of the VM.
       Copy

       Copied!

                   
       
                   
       $ ip addr
               

Allow approximately 15 minutes after the VM is started for the installation of the DLS virtual appliance to complete and for the DLS virtual appliance to start. What to do after the DLS virtual appliance starts depends on whether the VM has been assigned an IP address automatically, for example, by a DHCP server:

• If the VM has been assigned an IP address, what to do next depends on whether you are performing a new installation or are upgrading an existing DLS instance:

  • If you are performing a new installation, register the DLS administrator user on the appliance as explained in Registering the DLS Administrator User.
  • If you are upgrading an existing DLS instance, migrate the existing DLS instance as explained in Migrating a DLS Instance.

• Otherwise, set the IP address of the DLS virtual appliance from the hypervisor as explained in Setting the IP Address of a DLS Virtual Appliance from the Hypervisor.

2.5.1.5. Installing the DLS Virtual Appliance on Ubuntu Hypervisor

The DLS image for Ubuntu Hypervisor is distributed as a ZIP archive that contains a QEMU copy-on-write (QCOW2) image file. After preparing the QCOW2 file, install the image by using Virtual Machine Manager to create a VM from the QCOW2 file.

Perform this task from the hypervisor host.

1. Download the ZIP archive that contains the QCOW2 image file to the hypervisor host.
2. Extract the contents of the ZIP archive that you downloaded.
3. Copy the QCOW2 image file to the /var/lib/libvirt/images directory on the hypervisor host.
4. Start Virtual Machine Manager.
5. Add a connection to the hypervisor host.
   1. In the Virtual Machine Manager window, from the File menu, choose Add Connection.
   2. In the Add Connection window that opens, set the options in the following table and click Connect.

      Option	Setting
      Hypervisor	From the drop-down list, select QEMU/KVM.
      Connect to remote host over SSH	Select this option.
      User Name	In this text-entry field, type root.
      Hostname	In this text-entry field, type the IP address or the fully qualified host name of the Red Hat Enterprise Linux KVM host.

   The connection is added to the Virtual Machine Manager window.

6. Context click the connection that you added in the previous step and choose New. The Create a new virtual machine wizard starts.
7. In the first New VM window, select the Import existing disk image option and click Forward.
8. In the second New VM window, import the downloaded QCOW2 image file and choose the operating system to install.
   1. Click Browse.
   2. In the Choose Storage Volume window that opens, select the downloaded QCOW2 image file and click Choose Volume.
   3. Back in the second New VM window, type Ubuntu 20.04 in the search box and from the list of operating systems that opens, select Ubuntu 20.04 (ubuntu).
   4. Click Forward.
9. In the third New VM window, set Memory to 8192 MiB and CPUs to 4, and click Forward.
10. In the final New VM window, specify the VM name and the network that the VM will use.
    1. In the Name text-entry field, type your choice of name for the VM that you are creating.
    2. Select the Customize configuration before install option.
    3. From the Network Selection drop-down list, select the network that the VM will use.
    4. Click Finish.
11. In the window for reviewing a new VM, modify the VM as follows.
    1. Change the display server to VNC Server. In the left navigation bar, select Display Spice and from the Type drop-down list, select VNC Server.
    2. Remove USB Redirector 1, USB Redirector 2, and Channel spice. For each item to remove, context-click the item in the left navigation bar and from the menu that pops up, choose Remove Hardware.
    3. Change Video QXL to VGA. In the left navigation bar, select Video QXL and from the Model drop-down list, select VGA.
12. Click Apply to save your changes to the configuration and click Begin Installation.
13. After the VM is created, start the VM and log in to the VM to get the IP address of the VM. You must log in to the VM to get its IP address because the IP address is not shown in the Virtual Machine Manager console.
    1. Click the play button to start the VM on the hypervisor host.
    2. Use the command window that opens when the VM starts to log in to the DLS virtual appliance as the dls_system user. You don't need to provide a password to log in as the dls_system user.
    3. Get the address of the VM.
       Copy

       Copied!

                   
       
                   
       $ ip addr
               

Allow approximately 15 minutes after the VM is started for the installation of the DLS virtual appliance to complete and for the DLS virtual appliance to start. What to do after the DLS virtual appliance starts depends on whether the VM has been assigned an IP address automatically, for example, by a DHCP server:

• If the VM has been assigned an IP address, what to do next depends on whether you are performing a new installation or are upgrading an existing DLS instance:

  • If you are performing a new installation, register the DLS administrator user on the appliance as explained in Registering the DLS Administrator User.
  • If you are upgrading an existing DLS instance, migrate the existing DLS instance as explained in Migrating a DLS Instance.

• Otherwise, set the IP address of the DLS virtual appliance from the hypervisor as explained in Setting the IP Address of a DLS Virtual Appliance from the Hypervisor.

2.5.1.6. Installing the DLS Virtual Appliance on VMware vSphere

The DLS image for VMware vSphere is distributed as a ZIP archive that contains an Open Virtual Appliance (OVA) file.

Use the VMware vSphere Client to perform this task on the ESXi server on which you want to run the DLS virtual appliance.

For additional information, see the following topics on the VMware Docs site:

• Log in to vCenter Server by Using the vSphere Web Client
• Deploy an OVF or OVA Template

1. Download the ZIP archive that contains the OVA file that contains the DLS image for VMware vSphere.
2. Extract the contents of the ZIP archive that you downloaded.
3. Log in to vCenter Server by using the VMware vSphere Client.
4. From the VMware vSphere Client Actions menu, choose Deploy OVF Template.
5. Select the Local file option, browse for and select the downloaded OVA file, and click Next.
6. Enter the your choice of virtual machine name, select a location for the virtual machine, and click Next.
7. Select a compute resource where the virtual machine will be created and click Next.
8. Review the details of the template that you are deploying and click Next.
9. Select the storage for the virtual appliance configuration and disk files and click Next.
10. Leave the destination network as-is, set the IP allocation option to Static - Manual, and click Next.
11. Set the virtual network and IP allocation properties for the VM and click Next.
    1. In the ipaddress text-entry field, type the IP address that you want to assign to the VM.
       Note:

       To change this address after completing the installation, you must follow the instructions in Changing the IP Address of a VMware VM Set During DLS Appliance Installation. If you use any other method to change this address, it reverts to its original setting when the VM is restarted.

    2. In the netmask text-entry field, type the subnet mask of the VM's network in classless inter-domain routing (CIDR) format without the leading slash character (/). To get a subnet mask in CIDR format from its decimal equivalent, refer to the table on page 2 of IETF RFC 1878: Variable Length Subnet Table For IPv4. For example, the subnet mask in CIDR format of the decimal equivalent 255.255.255.0 is 24.
    3. In the gateway text-entry field, type the IP address of the VM's default gateway.
       Note:

       If you leave the gateway field empty, the DLS virtual appliance uses DHCP settings.

    4. Optional: In the dns_server_one text-entry field, type the IP address of the first DNS server to be used for name resolution.
    5. Optional: In the dns_server_two text-entry field, type the IP address of the second DNS server to be used for name resolution.
12. Review all the details of the virtual machine that you are creating and click Finish.
13. Start the VM that you created.

Allow approximately 15 minutes after the VM is started for the installation of the DLS virtual appliance to complete and for the DLS virtual appliance to start. What to do after the DLS virtual appliance starts depends on whether the VM has been assigned an IP address automatically, for example, by a DHCP server:

• If the VM has been assigned an IP address, what to do next depends on whether you are performing a new installation or are upgrading an existing DLS instance:

  • If you are performing a new installation, register the DLS administrator user on the appliance as explained in Registering the DLS Administrator User.
  • If you are upgrading an existing DLS instance, migrate the existing DLS instance as explained in Migrating a DLS Instance.

• Otherwise, set the IP address of the DLS virtual appliance from the hypervisor as explained in Setting the IP Address of a DLS Virtual Appliance from the Hypervisor.

2.5.2. Setting the IP Address of a DLS Virtual Appliance from the Hypervisor

If the VM that hosts a DLS virtual appliance has not been assigned an IP address automatically, you must set the IP address from the hypervisor. Each DLS virtual appliance provides a shell script specifically for this purpose and is configured with a user account for running the script.

1. Use the hypervisor management console of the appliance to log in as the user dls_system to the VM that hosts the DLS virtual appliance. You don't need to provide a password to log in as the dls_system user.
2. Run the /etc/adminscripts/set-static-ip-cli.sh script.
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   $ /etc/adminscripts/set-static-ip-cli.sh
           

3. When prompted, enter the details of the IP address. The script presents any default values that are already set for the virtual appliance's network.
   1. Enter the number that denotes the IP version that the virtual appliance's network uses.
      • For an IPv4 network, type 4.
      • For an IPv6 network, type 6.
   2. Enter the IP address that you want to assign to the DLS virtual appliance.
   3. Enter the IP address of the DLS virtual appliance's default gateway.
      Note:

      If you omit the default gateway address, the DLS virtual appliance uses DHCP settings.

   4. Enter the IP address of the first DNS server to be used for name resolution.
   5. Enter the IP address of the second DNS server to be used for name resolution.
   6. Enter the subnet mask of the DLS virtual appliance's network in classless inter-domain routing (CIDR) format without the leading slash character (/). To get a subnet mask in CIDR format from its decimal equivalent, refer to the table on page 2 of IETF RFC 1878: Variable Length Subnet Table For IPv4. For example, the subnet mask in CIDR format of the decimal equivalent 255.255.255.0 is 24.

After the IP address has been set, log files containing progress message from the script are available in the /tmp/static-ip-cli-logs directory.

What to do next depends on whether you are performing a new installation or are upgrading an existing DLS instance:

• If you are performing a new installation, register the DLS administrator user on the appliance as explained in Registering the DLS Administrator User.
• If you are upgrading an existing DLS instance, migrate the existing DLS instance as explained in Migrating a DLS Instance.

2.5.3. Changing the IP Address of a VMware VM Set During DLS Appliance Installation

The IP address of a VMware VM that hosts a DLS appliance can be set when the appliance is installed from an OVF template. If the IP address was set this way, you can change it only by editing vApps options within VM that hosts the DLS appliance. If you use any other method to change this address, it reverts to its original setting when the VM is restarted.

1. Log in to vCenter Server by using the VMware vSphere Web Client. For detailed instructions, refer to Log in to vCenter Server by Using the vSphere Web Client.
2. From the vCenter Server inventory, navigate to the VM that hosts the DLS appliance.
3. Shut down the VM to which you navigated in the previous step.
4. On the Configure tab, expand Settings, select vApp options, and click Edit.
5. In the list of vApp options, select Networkproperties.IPaddress and click Set Value.
6. Enter the IP address that you want to assign to the VM that hosts the DLS appliance.
7. Save your changes and start the VM.

2.6. Deploying a Containerized DLS Software Image

For bare-metal deployments on a supported container orchestration platform, the DLS is supplied as a containerized software image.

After verifying the requirements in Platform Requirements for a DLS Virtual Appliance or Containerized DLS Software Image, deploy a containerized DLS software image by following this sequence of instructions:

1. Setting Properties for a Containerized DLS Software Image
2. Deploying the Containerized DLS Software Image on a Supported Platform
3. Registering the DLS Administrator User
4. Optional:  Creating an HA Cluster of DLS Instances

2.6.1. Contents of the Containerized DLS Software Image Download

The containerized DLS software image is distributed as the ZIP archive nls-3.0.0-bios.zip.

This ZIP archive contains the following artifacts:

dls_appliance_3.0.0.tar.gz

The DLS application container.

dls_pgsql_3.0.0.tar.gz

The PostgreSQL database container.

The DLS application container and the PostgreSQL database container share a common volume for exchanging information between them. If both containers are deployed on a multinode cluster, they must be run on the same worker node.

2.6.2. Setting Properties for a Containerized DLS Software Image

To enable communications with the container within which the DLS appliance is running, you must set properties such as host names, IP addresses, and port numbers. Set these properties before deploying the containerized DLS software image on a supported platform.

Set the properties for a containerized DLS software image by editing the appropriate deployment file for your container orchestration platform.

2.6.2.1. Setting Environment Variables to Specify String Properties

You can set environment variables to specify string properties for all supported container orchestration platforms.

Set environment variables to specify string properties by editing the appropriate section of the deployment file for your container platform.

The environment variables for specifying string properties are as follows:

Required: DLS_DB_HOST

The IP address of the database container.

Ensure that the IP address of the database container is a private IP address on the same subnet as the DLS appliance container. The database container must not be accessible over any public subnet.

Required: DLS_PUBLIC_IP

The IP address of the container orchestration platform. To access the NVIDIA Licensing application, the user connects to the container in which the DLS software image is deployed through this address.

Optional: DLS_PRIVATE_HOSTNAME

The host name of the container in which the DLS software image is deployed.

If this environment variable is not set, the container orchestration platform sets the host name to the container ID.

Optional: FQDN

The fully qualified domain name that is mapped to the IP address that is specified by the DLS_PUBLIC_IP environment variable.

Ensure that this name can be resolved by licensed clients. Do not specify a name that can be resolved only by the container orchestrator.

If this environment variable is not set, a user cannot connect to the container in which the DLS software image is deployed through a fully qualified domain name.

2.6.2.2. Specifying Integer Values as Environment Variables

You can specify integer values such as port numbers for Docker, Podman, Red Hat OpenShift Container Platform, and VMware Tanzu Application Platform as environment variables.

To specify integer values by setting environment variables, edit the appropriate section of the deployment file for your container platform.

The following environment variables apply to Docker, Red Hat OpenShift Container Platform, and VMware Tanzu Application Platform:

Optional: CPU_CORE_LIMIT

The maximum number of CPU cores that can be assigned to the DLS appliance container pod.

Default: 4

Optional: DLS_HTTP_PORT

The port on which the container in which the DLS software image is deployed listens for HTTP requests.

Default: 80

Optional: DLS_HTTPS_PORT

The port on which the container in which the DLS software image is deployed listens for HTTPS requests.

Default: 443

Optional: DLS_RABBITMQ_SSL_PORT

The Secure Sockets Layer (SSL) port through which the nodes in and HA cluster of DLS instances communicate with each other.

Default: 5671

The following environment variables apply only to Red Hat OpenShift Container Platform and VMware Tanzu Application Platform:

Optional: DLS_EXPOSED_HTTP_PORT

The port on which the container orchestrator listens for and forwards the request to the port that is specified by the DLS_HTTP_PORT environment variable.

Not applicable to Docker or Podman.

Default: 30000

Optional: DLS_EXPOSED_HTTPS_PORT

The port on which the container orchestrator listens for and forwards the request to the port that is specified by the DLS_HTTP_PORTS environment variable.

Not applicable to Docker or Podman.

Default: 30001

Optional: DLS_VA_SERVICE_PORT

The port in the container orchestrator to which the DLS appliance container binds.

Not applicable to Docker or Podman.

Default: 8085

2.6.2.3. Specifying Integer Values as Actual Values

Kubernetes does not accept strings for integer values. Therefore, you cannot specify integer values for Kubernetes as environment variables. Instead, you must specify integer values for Kubernetes as actual values.

To specify integer values as actual values, replace the references to environment variables with actual values in the ports: section of the nls-si-0-deployment.yaml and nls-si-0-service.yaml deployment files.

• In nls-si-0-deployment.yaml, the references to environment variables in the ports: section are as follows:
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  ports:
     - containerPort: ${DLS_HTTP_PORT:-80}
       hostPort: ${DLS_EXPOSED_HTTP_PORT:-80}
     - containerPort: ${DLS_HTTPS_PORT:-443}
       hostPort: ${DLS_EXPOSED_HTTPS_PORT:-443}
     - containerPort: ${DLS_RABBITMQ_SSL_PORT:-5671}
       hostPort: ${DLS_RABBITMQ_SSL_PORT:-5671}
     - containerPort: 8085
       hostPort: ${DLS_VA_SERVICE_PORT:-8085}
          

• In nls-si-0-service.yaml, the references to environment variables in the ports: section are as follows:
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  ports:
      - name: "DLS_HTTP_CONTAINER"
        port: ${DLS_HTTP_PORT:-80}
        targetPort: ${DLS_HTTP_PORT:-80}
        nodePort: ${DLS_EXPOSED_HTTP_PORT:-30000}
      - name: "DLS_HTTPS_CONTAINER"
        port: ${DLS_HTTPS_PORT:-443}
        targetPort: ${DLS_HTTPS_PORT:-443}
        nodePort: ${DLS_EXPOSED_HTTPS_PORT:-30001}
      - name: "DLS_RABBITMQ_SSL_PORT"
        port: ${DLS_RABBITMQ_SSL_PORT:-5671}
        targetPort: ${DLS_RABBITMQ_SSL_PORT:-5671}
        nodePort: ${DLS_RABBITMQ_SSL_PORT:-5671}
      - name: "DLS_VA_SERVICE_PORT"
        port: 8085
        targetPort: 8085
        nodePort: ${DLS_VA_SERVICE_PORT:-8085}
          

The values with which to replace these references to environment variables are as follows:

Both files: ${DLS_HTTP_PORT:-80}

The port on which the container in which the DLS software image is deployed listens for HTTP requests.

nls-si-0-deployment.yaml: ${DLS_EXPOSED_HTTP_PORT:-80}

nls-si-0-service.yaml: ${DLS_EXPOSED_HTTP_PORT:-30000}

The port on which the container orchestrator listens for and forwards the request to the port that is specified by the DLS_HTTP_PORT environment variable.

Both files: ${DLS_HTTPS_PORT:-443}

The port on which the container in which the DLS software image is deployed listens for HTTPS requests.

nls-si-0-deployment.yaml: ${DLS_EXPOSED_HTTPS_PORT:-443}

nls-si-0-service.yaml: ${DLS_EXPOSED_HTTPS_PORT:-30001}

The port on which the container orchestrator listens for and forwards the request to the port that is specified by the DLS_HTTP_PORTS environment variable.

Both files: ${DLS_RABBITMQ_SSL_PORT:-5671}

The Secure Sockets Layer (SSL) port through which the nodes in and HA cluster of DLS instances communicate with each other.

Both files: ${DLS_VA_SERVICE_PORT:-8085}

The port in the container orchestrator to which the DLS appliance container binds.

This example shows the ports: sections in the nls-si-0-deployment.yaml and nls-si-0-service.yaml deployment files in which the references to environment variables are replaced with actual values.

• In nls-si-0-deployment.yaml, the ports: section is as follows:
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  ports:
     - containerPort: 80
       hostPort: 80
     - containerPort: 443
       hostPort: 443
     - containerPort: 5671
       hostPort: 5671
     - containerPort: 8085
       hostPort: 8085
          

• In nls-si-0-service.yaml, the ports: section is as follows:
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  ports:
      - name: "DLS_HTTP_CONTAINER"
        port: 80
        targetPort: 80
        nodePort: 30000
      - name: "DLS_HTTPS_CONTAINER"
        port: 443
        targetPort: 443
        nodePort: 30001
      - name: "DLS_RABBITMQ_SSL_PORT"
        port: 5671
        targetPort: 5671
        nodePort: 30002
      - name: "DLS_VA_SERVICE_PORT"
        port: 8085
        targetPort: 8085
        nodePort: 30003
          

2.6.3. Deploying the Containerized DLS Software Image on a Supported Platform

The containerized DLS software image is distributed with default deployment files for several container orchestration platforms. You use standard interfaces of the container orchestration platform to deploy the containerized DLS software image on your chosen platform.

The default deployment file for each supported container orchestration platform specifies the resource reservations for the container that are listed in Platform Requirements for a DLS Virtual Appliance or Containerized DLS Software Image. You are not required to specify the resource reservations for the container when you deploy the containerized DLS software image. Follow the instructions for the container orchestration platform that you are using.

2.6.3.1. Deploying the Containerized DLS Software Image on Docker

Ensure that the required environment variables have been set as explained in Setting Properties for a Containerized DLS Software Image.

1. Import the DLS appliance artifact and the PostgreSQL database artifact.
   1. Import the DLS appliance artifact.
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      docker load --input dls_appliance_3.0.0.tar.gz
              

   2. Import the PostgreSQL database artifact.
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      $ docker load --input dls_pgsql_3.0.0.tar.gz
              

2. Change to the directory that contains the docker-compose.yml file.
3. Start the DLS appliance and PostgreSQL database containers.
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   $ docker-compose up
           

2.6.3.2. Deploying the Containerized DLS Software Image on Kubernetes Platforms

Perform this task if you are using Kubernetes, Red Hat OpenShift Container Platform, or VMware Tanzu Application Platform.

Ensure that the following prerequisites are met:

• The required environment variables have been set as explained in Setting Properties for a Containerized DLS Software Image.
• A private repository for the DLS appliance artifact and the PostgreSQL database artifact has been created.
• If a registry secret is required for pulling the artifacts from the private repository, the registry secret has been created.

  In the deployment files for the DLS appliance artifact and the PostgreSQL database artifact, the name of the registry secret is preset to registry-secret. If you create a secret with this name, you don't need to edit the deployment files to reference the secret.

1. Import the DLS appliance artifact and the PostgreSQL database artifact into your private repository.
2. Edit the deployment files for the DLS appliance artifact and the PostgreSQL database artifact to pull these artifacts from the private repository into which they were imported. In each file, replace the string <POPULATE THIS WITH PRIVATE REPOSITORY> with the name of the private repository.
   1. For the DLS appliance artifact, edit the following line in the file nls-si-0-deployment.yaml:
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      image: <POPULATE THIS WITH PRIVATE REPOSITORY>:appliance
              

   2. For the PostgreSQL database artifact, edit the following line in the file postgres-nls-si-0-deployment.yaml:
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      image: <POPULATE THIS WITH PRIVATE REPOSITORY>:pgsql
              

3. If a registry secret is required for pulling the artifacts from the private repository, edit the deployment files for the DLS appliance artifact and the PostgreSQL database artifact to reference the secret. In each file, replace the string registry-secret with the name of your registry secret.
   1. For the DLS appliance artifact, edit the file nls-si-0-deployment.yaml.
   2. For the PostgreSQL database artifact, edit the file postgres-nls-si-0-deployment.yaml.
4. Start the PostgreSQL database container pod with the supplied deployment file postgres-nls-si-0-deployment.yaml.
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   $ kubectl create -f directory/postgres-nls-si-0-deployment.yaml
           

   directory

   The full path to the directory that contains the file postgres-nls-si-0-deployment.yaml.

5. Get the IP address of the PostgreSQL database container pod.
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   $ kubectl get pods -o wide
           

6. Set the DLS_DB_HOST environment variable in the file nls-si-0-deployment.yaml to the IP address that you got in the previous step.
   Note:

   To enable the DLS appliance container pod to create and modify files on the volumes mapped to it, ensure that the required file access permissions are set on these volumes.

7. Start the DLS appliance container pod with the supplied deployment file nls-si-0-deployment.yaml.
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   $ kubectl create -f directory/nls-si-0-deployment.yaml
           

   directory

   The full path to the directory that contains the file nls-si-0-deployment.yaml.

2.6.3.3. Deploying the Containerized DLS Software Image on Podman

Ensure that the required environment variables have been set as explained in Setting Properties for a Containerized DLS Software Image.

1. Import the DLS appliance artifact and the PostgreSQL database artifact.
   1. Import the DLS appliance artifact.
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      $ podman load --input dls_appliance_3.0.0.tar.gz
              

   2. Import the PostgreSQL database artifact.
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      $ podman load --input dls_pgsql_3.0.0.tar.gz
              

2. Change to the podman directory.
3. Optional: Edit the postgres-nls-si-0-deployment/compose.yml file to customize the subnets with which you want to create the postgres-nls-si-0-deployment_back-tier network. By default, the postgres-nls-si-0-deployment_back-tier network is created with the following subnets:
   • IPv4: 172.16.238.0/28
   • IPv6: 2001:3984:3989::/64
4. Create the postgres-nls-si-0-deployment_back-tier network, configurations volume mapping, and postgres-data volume mapping, and deploy the PostgreSQL database container.
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   $ podman-compose -f postgres-nls-si-0-deployment/compose.yml up -d
           

   For information about the configurations and postgres-datavolume mappings, refer to Volume Mappings for a Containerized DLS Software Image.

5. Confirm that the postgres-nls-si-0-deployment_back-tier network, configurations volume mapping, and postgres-data volume mapping were created and that the PostgreSQL database container was deployed.
   1. Confirm that the postgres-nls-si-0-deployment_back-tier network has been created.
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      # podman network ls
      NETWORK ID    NAME                                    DRIVER
      2f259bab93aa  podman                                  bridge
      272c45824a80  postgres-nls-si-0-deployment_back-tier  bridge
              

   2. Confirm that the properties of the postgres-nls-si-0-deployment_back-tier network, for example, its subnets, are correct.
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      # podman network inspect postgres-nls-si-0-deployment_back-tier
      [
          {
              "name": "postgres-nls-si-e-deployment_back-tier”,
              "id": "272cu5824a80fd8117261f28e820f920999fudes6a03ua78lesecf1015a76201",
              "driver": "bridge",
              "network_interface": "cni-podmanl",
              "created": "2023-03-08T07:42:03.88777482",
              "subnets": [
                  {
                      "subnet": "172.16.238.0/28",
                      "gateway": "172.16.238.1"
                  },
                  {
                      "subnet": "2001:3984:3989::/64",
                      "gateway": "2001:3984:3989::1"
                  }
              ],
              "ipv6_enabled": true,
              "internal": false,
              "dns_enabled": true,
              "labels": {
                  "com.docker.compose.project": "postgres-nls-si-0-deployment",
                  "io.podman.compose.project": "postgres-nls-si-0-deployment"
              },
              "ipam_options": {
                  "driver": "host-local"
              }
          }
      ]
              

   3. Confirm that the configurations volume mapping and postgres-data volume mapping were created.
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      # podman volume ls
      DRIVER       VOLUME NAME
      local        configurations
      local        postgres-data
              

   4. Confirm that the PostgreSQL database container was deployed.
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      # podman container ls
              

6. Get the IP address of the PostgreSQL database container pod.
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   $ podman inspect postgres-nls-si-0-deployment_postgres-nls-si-0_1
           

7. Set the DLS_DB_HOST environment variable in the file nls-si-0-deployment/compose.yml to the IP address that you got in the previous step.
8. Create the logs volume mapping and rabbitmq_data volume mapping, and deploy the DLS appliance container.
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   $ podman-compose  -f nls-si-0-deployment/compose.yml up -d
           

   For information about the logs and rabbitmq_data volume mappings, refer to Volume Mappings for a Containerized DLS Software Image.

9. Confirm that the logs volume mapping and rabbitmq_data volume mapping were created and that the DLS appliance container was deployed.
   1. Confirm that the logs volume mapping and rabbitmq_data volume mapping were created.
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      # podman volume ls
      DRIVER       VOLUME NAME
      ...
      local        logs
      ...
      local        rabbitmq_data
              

   2. Confirm that the DLS appliance container was deployed.
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      # podman container ls
              

2.6.4. Volume Mappings for a Containerized DLS Software Image

When a containerized DLS software image is deployed, several volume mappings are created for maintaining the state of the NVIDIA Licensing application in the DLS appliance.

The volume mappings that are created are as follows:

configurations

Contains the state of the DLS appliance container to enable its dynamic properties to be retrieved if the container fails.

logs

Contains log files created by the NVIDIA Licensing application in the DLS appliance.

postgres-data

Contains NVIDIA Licensing application data created by the PostgreSQL database. Because this volume contains information about available and checked out licenses, ensure that access to this volume is limited.

rabbitmq_data

Contains information about the real-time replication of data between nodes in an HA cluster of DLS instances.

2.6.5. Troubleshooting Issues with Deploying the Containerized DLS Software Image

2.6.5.1. Containerized DLS Appliance Fails to Start on Kubernetes Platforms

When this issue occurs, the service enters a crash loop, container creating, pending sequence before the container enters an error state.

This issue might affect Kubernetes, Red Hat OpenShift Container Platform, or VMware Tanzu Application Platform. It does not affect Docker.

1. Ensure that the file access permissions on the volumes allow write access by the database container and the DLS appliance container, for example 707 (rwx---rwx).
2. If the containerized DLS software image is deployed on a multinode cluster, ensure that the database container and the DLS appliance container are running on the same worker node.
3. If the Kubernetes cluster does not dynamically provision persistent volumes when creating persistent volume claims, ensure that the persistent volumes are created manually with file access permissions that allow the database container and the DLS appliance container to write to them.
4. Ensure that the versions of the database container and the DLS appliance container are identical.

2.6.5.2. Volume Mode Access for DLS Appliance Resources on Kubernetes Platforms Is Incorrect

The DLS application container and the PostgreSQL database container share a common volume for exchanging information between them. If the volume mode access is incorrect, start-up of only the first container pod to be started is successful. The remaining container pod fails to start because the volume is already mounted on the first container pod to be started.

This issue might affect Kubernetes, Red Hat OpenShift Container Platform, or VMware Tanzu Application Platform. It does not affect Docker.

1. If both containers are deployed on a multinode cluster, ensure that the DLS application container and the PostgreSQL database container run on the same worker node.
2. Ensure that the PostgreSQL database container pod is started before the DLS appliance container pod. For more information, refer to Deploying the Containerized DLS Software Image on Kubernetes Platforms.

2.6.5.3. Data Validation Errors Prevent the DLS Appliance Container Pod from Starting on Kubernetes

This issue occurs if port numbers are specified as references to environment variables in the deployment files. Because Kubernetes does not accept string values for port numbers, you cannot specify port numbers for Kubernetes by setting environment variables.

This issue might affect Kubernetes. It does not affect other supported container orchestration platforms. When this issue occurs, the following error messages are displayed:

            

            
error: error validating ".": error validating data:[
ValidationError(Deployment.spec.template.spec.containers[0].ports[0].containerPort): 
invalid type for io.k8s.api.core.v1.ContainerPort.containerPort: got "string", expected "integer", 
ValidationError(Deployment.spec.template.spec.containers[0].ports[0].hostPort):
invalid type for io.k8s.api.core.v1.ContainerPort.hostPort: got "string", expected "integer",
ValidationError(Deployment.spec.template.spec.containers[0].ports[1].containerPort): 
invalid type for io.k8s.api.core.v1.ContainerPort.containerPort: got "string", expected "integer",
ValidationError(Deployment.spec.template.spec.containers[0].ports[1].hostPort): 
invalid type for io.k8s.api.core.v1.ContainerPort.hostPort: got "string", expected "integer",
ValidationError(Deployment.spec.template.spec.containers[0].ports[2].containerPort): 
invalid type for io.k8s.api.core.v1.ContainerPort.containerPort: got "string", expected "integer", 
ValidationError(Deployment.spec.template.spec.containers[0].ports[2].hostPort): 
invalid type for io.k8s.api.core.v1.ContainerPort.hostPort: got "string", expected "integer", 
ValidationError(Deployment.spec.template.spec.containers[0].ports[3].hostPort): 
invalid type for io.k8s.api.core.v1.ContainerPort.hostPort: got "string", expected "integer"];
        

1. Edit the deployment files to specify port numbers as integer values instead of references to environment variables. For instructions, refer to Specifying Integer Values as Actual Values.
2. Start the DLS appliance container pod with the supplied deployment file nls-si-0-deployment.yaml.
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   $ kubectl create -f directory/nls-si-0-deployment.yaml
           

   directory

   The full path to the directory that contains the file nls-si-0-deployment.yaml.

2.6.5.4. The Management Interface of the NVIDIA Licensing Application Fails to Load

When this issue occurs, the containerized DLS appliance starts correctly but the management interface of the NVIDIA Licensing application is not loaded into the browser.

1. Ensure that the DLS_DB_HOST environment variable set to the IP address of the database container.
2. Ensure that the environment variables for port mappings set in the deployment files are correct and that the ports are open on the Kubernetes node.
3. Ensure that the port specified by the DLS_EXPOSED_HTTPS_PORT environment variable is open in the firewall on the node that is hosting the DLS appliance container.
4. If the Kubernetes cluster does not dynamically provision persistent volumes when creating persistent volume claims, ensure that the persistent volumes are created manually with file access permissions that allow the database container and the DLS appliance container to write to them.
5. Ensure that the versions of the database container and the DLS appliance container are identical.

2.6.5.5. HA Configuration or Online Upgrade Fails

High availability (HA) configuration or online upgrade between two containerized DLS appliances fails if port mappings or volume configurations are incorrect.

1. Ensure that the same ports are exposed and mapped internally for both containers. The following environment variables must be the same for both containers.
   • DLS_EXPOSED_HTTP_PORT
   • DLS_EXPOSED_HTTPS_PORT
2. Ensure that the DLS_RABBITMQ_SSL_PORT environment variable is set to 5671 for both containers
3. Ensure that ports 5671, 8081 and 8084 are open on the containers within which the containerized DLS appliances are deployed.
4. Ensure that Ports 8080 through 8085 are open on each worker node.
5. Ensure that the sizes of the volumes rabbitmq-data, postgres-data, logs and configurations are equal to or exceed the minimum recommended storage space.

   Volume	Minimum Recommended Storage Space
   rabbitmq-data	2 GiB
   postgres-data	10 GiB
   logs	500 MiB
   configurations	100 MiB

6. Ensure that the file access permissions on the folders inside the rabbitmq-data volume allow write access by the containers.

2.6.5.6. Windows Client Cannot Return Licenses Because the Return Endpoint Is Unavailable

A licensed Windows client returns a license by sending an HTTP request to the DLS instance on port 80. If the container orchestrator within which a containerized DLS appliance is deployed cannot receive requests on this port, the client cannot return a license.

How to resolve this issue depends on whether you can control the port on which the container orchestrator listens for HTTP requests.

• If you can control the port on which the container orchestrator listens for HTTP requests from licensed clients, ensure that the DLS_EXPOSED_HTTP_PORT environment variable is set to 80.
• Otherwise, use a load balancer to do path based routing of all license return requests to the URL https://dls-ip-address:dls-exposed-https-port/leasing/v1/lessor/shutdown

  dls-ip-address

  The IP address that is specified in the DLS_PUBLIC_IP environment variable.

  dls-exposed-https-port

  The port number that is specified in the DLS_EXPOSED_HTTPS_PORT environment variable.

  For more information about these environment variables, refer to Setting Properties for a Containerized DLS Software Image.

2.6.5.7. Client Cannot Obtain License if Client Configuration Token Specifies the Domain Name

A configuration error for a containerized DLS instance can prevent a licensed client from obtaining a license if the client configuration token specifies a fully qualified domain name. However, this error does not prevent a client from obtaining a license if the client configuration token specifies an IP address.

1. Set the FQDN environment variable to the fully qualified domain name that is mapped to the IP address of the container in which the DLS software image is deployed.

   Ensure that this name can be resolved by licensed clients. Do not specify a name that can be resolved only by the container orchestrator.

2. Restart the container in which the DLS appliance is deployed.

2.6.5.8. Node Health Information Is Missing from the Service Instance Page

Insufficient storage for a containerized DLS instance can prevent node health information from being displayed on the Service Instance page of the management interface of the NVIDIA Licensing application.

1. Force reload the Service Instance page in the browser.
2. If the node health information is still missing after the page is reloaded, check the amount of storage space available in the volumes created for the DLS appliance container. For more information about these volumes, refer to Volume Mappings for a Containerized DLS Software Image.
3. If any volumes are full, resize the volumes and restart the container in which the DLS appliance is deployed.

2.6.5.9. The podman-compose Command Fails with Missing Networks Error

In some deployments, the podman-compose up command might fail with the error RuntimeError: missing networks: back-tier.

This failure is caused by a known issue with Podman Compose 1.0.3 and earlier versions.
Ensure that you are using one of the supported versions of Podman Compose listed in NVIDIA Delegated License Service Release Notes. If necessary, install the latest version of Podman from GitHub.

            

            
# pip3 install https://github.com/containers/podman-compose/archive/devel.tar.gz
        

2.6.5.10. Re-deploying a Containerized DLS Software Image on Red Hat OpenShift Container Platform Fails

Re-deploying a containerized DLS software image on Red Hat OpenShift Container Platform might fail because permission issues prevent a new PostgreSQL database container from being deployed. This issue can cause an in-place upgrade to fail because an in-place upgrade requires the containerized DLS software image to be re-deployed.

When this issue occurs, the following error messages are displayed:

            

            
chown: /etc/dls/config/ldap3-2.9.1.dist-info: Permission denied 
chown: /etc/dls/config/ldap3: Permission denied 
chown: /etc/dls/config/chardet-4.0.0.dist-info: Permission denied 
chown: /etc/dls/config/chardet: Permission denied 
chown: /etc/dls/config/certifi-2022.12.7.dist-info: Permission denied 
chown: /etc/dls/config/certifi: Permission denied
        

1. Change to the directory where the configuration volume is mounted.
2. Change to the /etc/dls/config/ directory.
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3. Forcibly remove the directories for which permission is denied and their contents.
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   $ \rm -rf ldap3-2.9.1.dist-info ldap3 \
   chardet-4.0.0.dist-info chardet \
   certifi-2022.12.7.dist-info certifi
           

4. Try again to deploy the containerized DLS software image on Red Hat OpenShift Container Platform. For detailed instructions, refer to Deploying the Containerized DLS Software Image on Kubernetes Platforms.

2.7. Configuring User Accounts on a DLS Virtual Appliance

Each DLS software image is configured with a single standard user account for accessing the DLS appliance and an account with sudo user privileges for installing updates to the DLS appliance software. Modifications to these accounts are strictly controlled. You cannot add other user accounts to the software image. However, you can use a lightweight directory access protocol (LDAP) directory instead of the configured accounts for managing user access to a DLS appliance.

2.7.1. Registering the DLS Administrator User

Each DLS virtual appliance is configured with a user account specifically for administering the DLS. This account provides access through a web-based management interface to the NVIDIA Licensing application on the appliance. Before administering a DLS virtual appliance, you must register this user to be able to access this management interface.

If you intend to configure a cluster of DLS instances, you need perform this task only for the DLS instance from which you will configure the cluster. The registration of the DLS administrator user is propagated from this instance to the other instance when you configure the cluster.

1. Open a web browser and connect to the URL https://dls-vm-ip-address.

   dls-vm-ip-address

   The IP address or, if defined, the fully qualified domain name or the CNAME of the VM on which the DLS virtual appliance is installed.

   You can get the IP address from the management console of your hypervisor.

2. On the Set Up page that opens, click NEW INSTALLATION.
3. On the Register User page that opens, provide the credentials for the DLS administrator user.
   Note:

   If the DLS administrator user has already been registered, the login page opens instead of the Register User page.

   1. Optional: If you want to change the user name from the preset name dls_admin, replace the text in the Username field with your choice of user name.
   2. Provide a password for the DLS administrator user and confirm the password. The password must be at least eight characters long and is case sensitive.
   Note:

   You can change the DLS administrator user name and password at any time after the DLS administrator user is registered. For instructions, refer to Changing the DLS Administrator User Name and Password.

4. Determine whether you want to enable an additional user that will be able to access the log files for the DLS virtual appliance.
   • If you want to enable this additional user, ensure that the Create a diagnostic user option remains selected.
   • Otherwise, deselect the Create a diagnostic user option.
5. Click REGISTER. The Register User page is refreshed to confirm that the user has been registered and displays a local reset secret to enable you to reset the user's password.
6. Copy the local reset secret and store it securely, for example, by clicking the clipboard icon and pasting the local reset secret into a plain text file that is readable only by you. You will need this key to reset the DLS administrator user's password.
7. Click CONTINUE TO LOGIN.
8. On the login page that opens, type the user name of the DLS administrator user, provide the password that you set for this user, and click LOGIN.

If you want to use the virtual appliance for a single DLS instance, what to do next depends on whether you intend to use a static IP address for the virtual appliance that is hosting the DLS instance.

• If you want to use the virtual appliance in an HA cluster of DLS instances, configure the cluster as explained in Configuring an HA Cluster of DLS Instances.

• If you want to use a static IP address for the virtual appliance that is hosting the DLS instance, set the address as explained in Setting the Static IP Address of a DLS Virtual Appliance.

• Otherwise, configure the DLS instance as explained in Configuring a Service Instance.

If you need to reset the DLS administrator user's password, follow the Forgot Password? link on the login page and, when prompted, type the local reset secret, provide a new password for this user, and confirm the new password.

2.7.2. Retrieving the DLS Administrator User's Reset Secret

If you need to reset the DLS administrator user's password but do not have the local reset secret, you can download a reset secret from the NVIDIA Licensing Portal.

1. If you are not already logged in, log in to the NVIDIA Enterprise Application Hub and click NVIDIA LICENSING PORTAL to go to the NVIDIA Licensing Portal.

2. In the left navigation pane, click SERVICE INSTANCES.

   

3. In the list of service instances on the Service Instance page that opens, from the Actions menu for the DLS instance, choose Download Reset Secret. (Note that the menu is too narrow, so the text is truncated.)
4. When prompted, click DOWNLOAD. A file named dls_local_reset_secret_mm-dd-yyyy-hh-mm-ss.tok is saved to your default downloads folder.

When resetting the DLS administrator user's password, upload the reset secret to the DLS instance.

2.7.3. Changing the DLS Administrator User Name and Password

If you choose not to change the DLS administrator user name when registering the DLS administrator user, you can change it at any time after the DLS administrator user is registered. You can also change the password for the DLS administrator user.

1. Open a web browser and connect to the URL https://dls-vm-ip-address.

   dls-vm-ip-address

   The IP address or, if defined, the fully qualified domain name or the CNAME of the VM on which the DLS virtual appliance is installed.

   You can get the IP address from the management console of your hypervisor.

2. At the top right of the Dashboard page in the NVIDIA Licensing application on the DLS appliance that opens, click View settings.
3. In the My Info window that opens, click Change username/password.
4. In the Change Username/Password window that opens, make the changes that you want and click CHANGE USERNAME/PASSWORD.
   1. If you want to change the user name, replace the text in the Username field with your choice of user name.
   2. In the Current password text-entry field, type the current password for the DLS administrator user.
   3. In the New password text-entry field, type the password that you want for the DLS administrator user. If you do not want to change the password, type the current password for the DLS administrator user. You cannot leave this field empty.
   4. In the Confirm new password text-entry field, type the password that you typed in the New password text-entry field.

2.7.4. Creating the DLS sudo User Account

The predefined DLS sudo user account rsu_admin has the elevated privileges required to install updates to the DLS appliance software that NVIDIA releases periodically. To comply with the terms of the GPL/LGPL v3 license under which the GPL/LGPL v3 licensed Open Source Software (OSS) libraries within the DLS virtual appliance are released, this account also has the elevated privileges required to update and upgrade these libraries.

Perform this task for each DLS virtual appliance for which you want to create the DLS sudo user account. If the DLS virtual appliance is hosting a node in an HA cluster, the creation of the user is not automatically propagated to the other node in the cluster.

1. From the hypervisor, log in as the user dls_admin to the VM that hosts the DLS virtual appliance.
2. Run the /etc/adminscripts/enable_sudo.sh script.
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3. When prompted, provide a password for the rsu_admin user.

The sudo user with elevated privileges rsu_admin is created.

2.7.5. Integrating a DLS Instance with an LDAP Server

There are now updates to provisioned users on the DLS VM Appliance offering.

The dls_diagnostics and dls_system users have been replaced with the default user, which is the dls_admin user. For the initial installation of DLS and prior to registration on the UI, the default password for the dls_admin user is welcome. Once registration on the portal is done, the same password and username can be used to login to the VM Appliance from the hypervisor console.

• When a user updates the username of the DLS Admin user from UI portal on the browser, the username of the underlying provisioned user on the VM appliance also gets updated. This same behavior also applies for password updates.
• The dls_admin user has the same capabilities as that of dls_system and dls_diagnostics. In other words, all are able to configure appliance network properties, enable the sudo user, configure disk expansion, view log files, configuration files, etc.
• The rsu_admin user role would be used for an in-place upgrade, applying security patches, and the execution of NVIDIA-provided scripts. This is true unless it is used for OS-based package updates; in that case, there is no concern for DLS support.

1. The DLS Appliance supports LDAP integration for authenticating users using NTLM method of authentication.
2. The configuration for integration can be done from the Settings page on the DLS UI portal.
3. When configuring LDAP integration, in the case of a DLS VM Appliance, users have to provide Additional Details to be able to integrate LDAP with the operating system, so that LDAP users can login to the VM Appliance using SSH or the Hypervisor console. For more settings related to integrating LDAP with operating system, users can login to the DLS Appliance VM from hypervisor console using the dls_admin user, then edit the file:
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   /etc/ldap.conf
           

   The logged-in user will have the same permissions as the dls_admin user on the VM appliance.
4. If LDAP users want to enable the sudo user rsu_admin, they must execute the admin script:
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   /etc/adminscripts/enable_sudo.sh
           

   Note:

   Note that this script will not enable the rsu_admin user, but it will give sudo permissions to the currently logged-in LDAP user for a limited time of 1 hour. This will only occur if LDAP integrations have been enabled for the DLS Appliance.

5. If there is no LDAP integration configured for the DLS appliance, you can create a rsu_admin user account with sudo permissions by executing the following script:
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   /etc/adminscripts/enable_sudo.sh
           

2.7.6. Logging in to a DLS Virtual Appliance

Each DLS virtual appliance is configured with a user account specifically for administering the DLS. This account provides access through a web-based management interface to the NVIDIA Licensing application on the appliance.

Ensure that the DLS administrator user has been registered for the appliance as explained in Registering the DLS Administrator User.

1. Open a web browser and connect to the URL https://dls-vm-ip-address.

   dls-vm-ip-address

   The IP address or, if defined, the fully qualified domain name or the CNAME of the VM on which the DLS virtual appliance is installed.

   You can get the IP address from the management console of your hypervisor.

2. On the login page that opens, provide the user credentials for the DLS administrator user on the DLS virtual appliance and click LOGIN.

If LDAP is used as an alternative to the fixed set of user accounts for user management, you can use the rsu_admin account to administer the DLS virtual appliance instead. See Integrating a DLS Instance with an LDAP Server for more information.

2.8. Configuring an HA Cluster of DLS Instances

To provide licensed clients with continued access to licenses if a DLS instance fails, you can configure a two-node highly available (HA) cluster of DLS instances in a failover configuration. A failover configuration consists of a primary instance, which is actively serving licenses to licensed clients, and a secondary instance, which acts as a backup for the primary instance.

If you are configuring an HA cluster of containerized DLS instances, you must deploy the containers that host the instances on two different Kubernetes clusters. To prevent the NVIDA Licensing application from behaving abnormally, do not deploy the containers on two different worker nodes in the same Kubernetes cluster. The application would behave abnormally because the orchestrator forwards requests to ports that are mapped onto the corresponding Kubernetes service.

If an attempt to configure an HA cluster of containerized DLS instances fails, refer to HA Configuration or Online Upgrade Fails for troubleshooting information.

2.8.1. Creating an HA Cluster of DLS Instances

Use the management interface of the NVIDIA Licensing application to convert a pair of newly created standalone DLS instances into an HA cluster of DLS instances.

Ensure that the following prerequisites are met:

• The DLS virtual appliances that will host the DLS instances to be configured in a cluster have been installed and started.
  Note:

  The version of the both DLS virtual appliances must be identical. You cannot configure an HA cluster in which the versions of the virtual appliances are different.

• The DLS administrator user has been registered only on one virtual appliance. The registration of the DLS administrator user is propagated to the other instance when you configure the cluster.

1. Log in to the DLS virtual appliance on which the DLS administrator user has been registered. After the cluster is configured, this DLS virtual appliance will initially host the primary DLS instance.
2. In the left navigation pane, click SERVICE INSTANCE.
3. On the Service Instance page that opens, under Node Configuration, set the Enable High Availability option. The text-entry field and the PING button are activated, and the CREATE HA CLUSTER button is deactivated.
4. In the text-entry field, type the IP address or, if configured, the fully qualified domain name of the other virtual appliance to be configured in a cluster and click PING. After the cluster is configured, this DLS virtual appliance will initially host the secondary DLS instance.
   • If the virtual appliance that will initially host the secondary DLS instance can be reached, the message SUCCESS appears next to the PING button and the CREATE HA CLUSTER button is activated.
   • Otherwise, the message FAILURE appears next to the PING button and the CREATE HA CLUSTER button remains deactivated.
5. Click CREATE HA CLUSTER to start the configuration and wait for it to complete. The Service Instance page displays the progress of the HA cluster configuration. The configuration process takes approximately 10 minutes to complete.

When the configuration is complete, the Service Instance page is updated to show the node health of the cluster.

If you intend to use static IP addresses for the virtual appliances that are hosting the DLS instances in the cluster, set the address of each virtual appliance as explained in Setting the Static IP Address of a DLS Virtual Appliance. Otherwise, configure the DLS instance on the virtual appliance that is hosting the primary DLS instance as explained in Configuring a Service Instance.

To fail over or change the roles of the DLS instances, restart the DLS virtual appliance that is hosting the primary DLS instance.

2.8.2. Converting a Standalone DLS Instance into a Node in an HA Cluster

Any time after configuring a standalone DLS instance, you can convert the instance into a node in an HA cluster. You can also convert a node that became a standalone instance because the other node in a cluster was automatically removed by the DLS.

For information about automatic removal of a node, see index.html#automatic-removal-of-ha-cluster-node.

Ensure that a second DLS virtual appliance has been installed and started.

1. Log in to the DLS virtual appliance that hosts the DLS instance that you want to convert. After the instance is converted, it will initially be the primary DLS instance.
2. In the left navigation pane, click SERVICE INSTANCE.
3. On the Service Instance page that opens, under Node Health, click CONFIGURE HIGH AVAILABILITY. The Configure High Availability section with a text-entry field and a button that is labeled PING are added to the page.
4. In the text-entry field, type the IP address or, if configured, the fully qualified domain name of the second virtual appliance and click PING.
   • If the second virtual appliance can be reached, the message SUCCESS appears next to the PING button and the CREATE HA CLUSTER button is activated.
   • Otherwise, the message FAILURE appears next to the PING button and the CREATE HA CLUSTER button remains deactivated.
5. Click CREATE HA CLUSTER to start the configuration and wait for it to complete. The Service Instance page displays the progress of the HA cluster configuration. The configuration process takes approximately 10 minutes to complete.

When the configuration is complete, the Service Instance page is updated to show the node health of the cluster.

2.8.3. Removing a Node from an HA Cluster

You can remove the secondary node from an HA cluster. After the node is removed, the primary node is converted to a standalone DLS instance. You can perform this task to remove the secondary node even if it is down.

1. Log in to the DLS virtual appliance that hosts the primary node in the cluster.
2. In the left navigation pane, click SERVICE INSTANCE.
3. On the Service Instance page that opens, under Node Health, click REMOVE adjacent to the DLS virtual appliance that hosts the secondary node in the cluster.
4. When asked if you want to remove the node, click CONFIRM.

When the secondary node is removed, the primary node is converted to a standalone DLS instance. What happens to the secondary node depends on the type of platform that is hosting the nodes in the cluster:

• For a cluster of instances on VM-based DLS virtual appliances, the virtual appliance that hosts the node is shut down and all data on the node is removed.
• For a cluster of instances on different container orchestrators, the container that hosts the node is not shut down. You must shut down the container manually.

If both nodes fail or are shut down, you must restart the last node to fail or be shut down first. If you restart the first node to fail or be shut down first, the node will not be functional until the other node is started.

2.8.4. Marking a Node as the Primary Node in an HA Cluster

Initially, the primary node in an HA cluster is the node that is hosted on the DLS appliance from which the cluster was created. It remains the primary node unless or until it fails, at which point failover occurs and the secondary node becomes the primary node. If you want to control which node is the primary node a cluster, you can mark a secondary node as the primary node in the cluster.

1. Log in to the DLS virtual appliance that hosts the secondary node that you want to mark as the primary node.
2. In the left navigation pane of the NVIDIA Licensing dashboard, click SERVICE INSTANCE.
3. On the Service Instance page that opens, locate the Current Node Role property and click Mark As Primary.
4. When asked to confirm that you want to mark the node as the primary node, click Mark As Primary. The node assumes the primary role and starts to serve licenses to clients. All other nodes in the cluster, including the node that was the primary node, are marked as secondary nodes.

2.9. Configuring a DLS Virtual Appliance with a Third-Party Signed SSL Certificate

By default, a DLS virtual appliance is configured with a self-signed SSL certificate that is included in the DLS virtual appliance image from which the DLS virtual appliance is created. If necessary, you can replace the self-signed certificate with an SSL certificate that is signed by a third party, such as a certificate authority (CA).

To configure a DLS virtual appliance with a third-party signed SSL certificate, follow this sequence of instructions:

1. Obtaining a Third-Party Signed SSL Certificate for a DLS Virtual Appliance
2. Installing a Third-Party Signed SSL Certificate on a DLS Virtual Appliance

2.9.1. Obtaining a Third-Party Signed SSL Certificate for a DLS Virtual Appliance

Obtain a third-party signed SSL certificate by submitting a certificate signing request (CSR) to a suitable third party, such as a certificate authority (CA).

Ensure that the IP address of any DLS virtual appliance that will be configured with the certificate is mapped to the domain name that you will specify in the certificate.
For an HA cluster of DLS instances, you can choose to obtain a single wildcard domain certificate for all nodes in the cluster or one fully qualified domain name certificate for each node in the cluster.

For each certificate that you require, submit a certificate signing request (CSR) to a CA.

Ensure that each certificate that you request meets these requirements:

• The certificate must be a PEM text file (not in Java keystore format) and secured with a private key.
• The certificate and the private key must be in separate files.
• To ensure that web browsers trust the domain, the domain name must be part of the Subject Alternate Name (SAN) attribute, not the Common Name (CN) attribute of the CSR.
• The SAN attribute of the CSR must specify the fully qualified domain name of any DLS virtual appliance that will be configured with the certificate.

  Do not specify an IP address in the SAN attribute of the CSR. A DLS virtual appliance cannot be configured with an SSL certificate that specifies an IP address.

• The certificate must use RSA, DSA, and DH keys that are at least 2048 bits long.
• The certificate must use ECC keys greater that are longer than 224 bits long.
• If the certificate chain of trust includes intermediate certificates, the certificate must be bundled with the intermediate certificates in the following order:
  1. Domain name certificate
  2. Intermediate certificates
  3. Root certificate

If necessary, contact the CA that will provide your certificate for information about how to request a certificate that meets these requirements or convert an existing certificate to meet these requirements.

2.9.2. Installing a Third-Party Signed SSL Certificate on a DLS Virtual Appliance

Ensure that you have obtained the SSL certificate that you are installing and its private key file.
If you are installing a wildcard domain certificate for all nodes in an HA cluster, perform this task from the primary node in the cluster only. The certificate is propagated automatically to the secondary node in the cluster. If you are installing one fully qualified domain name certificate for each node in the cluster, perform this task separately from each node.

1. Log in to the DLS virtual appliance on which you are installing the SSL certificate.
2. In the left navigation pane, click SETTINGS.
3. On the Service Instance Settings page that opens, expand the SSL Configuration section.
4. In the SSL Configuration section, specify the SSL certificate that you are installing and its private key file.
   1. If you are installing a wildcard domain certificate for all nodes in an HA cluster, set the Apply Wildcard option.
   2. Ensure that the Domain Name field contains the domain name that is specified in the certificate.
      Note:

      The Domain Name field is case-sensitive. The case of the name in this field must match exactly the case of the name as specified in the certificate.

   3. Click Choose File adjacent to Certificate and in the file browser that opens, navigate to the folder that contains the SSL certificate and select the file.
   4. Click Choose File adjacent to Private Key and in the file browser that opens, navigate to the folder that contains the SSL certificate's private key and select the file.
5. Click CONFIGURE.

2.10. Configuring a VM-Based DLS Virtual Appliance

A VM-based DLS virtual appliance strictly controls access to the underlying OS. Therefore, the management interface of the NVIDIA Licensing application enables you to perform configuration tasks that change the configuration of the underlying OS.

2.10.1. Setting the Static IP Address of a DLS Virtual Appliance

You can use the management interface to the NVIDIA Licensing application to replace the existing IP address of the appliance with a new static IP address. The existing IP address can be an address assigned by DHCP or another static IP address.

The instance that the DLS virtual appliance is hosting must already be configured as a standalone DLS instance or as an instance in a HA cluster.

1. If you aren't logged in already, log in to the DLS virtual appliance.
2. In the left navigation pane, click SERVICE INSTANCE.
3. On the Service Instance page that opens, under Node Health, click CONFIGURE IP ADDRESS adjacent to the DLS virtual appliance for which you are setting a static IP address.
   CAUTION:

   If the DLS virtual appliance for which you are setting a static IP address is a node in an HA cluster and the type of any node is unknown, do not attempt to set the static IP address. Any change to the static IP address is not propagated to the node whose type is unknown because the node is unreachable.

4. In the Configure Node IP Address window that opens, provide the details of the IP address of the node and click UPDATE.
   1. In the Static IP address text-entry field, type the IP address that you want to assign to the DLS virtual appliance.
   2. In the Gateway text-entry field, type the IP address of the DLS virtual appliance's default gateway.
      Note:

      If you leave the Gateway field empty, the DLS virtual appliance uses DHCP settings.

   3. In the Netmask Prefix text-entry field, type the subnet mask of the DLS virtual appliance's network in classless inter-domain routing (CIDR) format without the leading slash character (/). The netmask prefix must be an integer in the range 2-32. To get a subnet mask in CIDR format from its decimal equivalent, refer to the table on page 2 of IETF RFC 1878: Variable Length Subnet Table For IPv4. For example, the subnet mask in CIDR format of the decimal equivalent 255.255.255.0 is 24.
   4. In the first DNS Server text-entry field, type the IP address of the first DNS server to be used for name resolution.
   5. In the second DNS Server text-entry field, type the IP address of the second DNS server to be used for name resolution.

   If you are setting the IP address of the instance that you are logged in to, your browser will be disconnected from the instance after the update is complete. In this situation, you will need to log in to the DLS appliance again at the IP address that you set.

   Note:

   Setting the IP address of an instance in an HA cluster causes a failover of the cluster. As a result of the failover, the roles of the primary and secondary instances in the cluster are reversed.

5. If necessary, log in to the DLS virtual appliance again by connecting to the URL https://dls-vm-static-ip-address.

   dls-vm-static-ip-address

   The static IP address that you set for the DLS virtual appliance.

If the DLS instance hasn't already been configured and is a standalone instance or the primary instance in an HA cluster, configure the instance as explained in Configuring a Service Instance.

2.10.2. Reverting the Network Configuration of a DLS Appliance to DHCP

If necessary, you can revert the network configuration of a DLS appliance to DHCP after a static IP address has been assigned to the DLS appliance. After the network configuration is reverted to DHCP, the IP address of the appliance's network interface is assigned automatically. To revert the network configuration to DHCP, use the operating system command nmcli. Each DLS virtual appliance is configured with a user account with the elevated privileges required for running the nmcli command.

Perform this task from the hypervisor console, not from a secure shell (SSH) session. This task requires the requires DLS appliance's network service to be restarted, which would disconnect an SSH session.

In the nmcli commands in the following steps for changing the configuration of the DLS appliance's network interface, you can use the modify subcommand as an alternative to the edit subcommand.
Ensure that the sudo DLS user account rsu_admin has been created.

1. Use the hypervisor management console of the appliance to log in as the user rsu_admin to the VM that hosts the DLS appliance.
2. Get the connection name of the DLS appliance's network interface.
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   $ sudo nmcli connection show
           

   The connection name of the DLS appliance's network interface in this example is Wired connection 1.
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   $ sudo nmcli connection show
   NAME                UUID                                  TYPE      DEVICE Wired connection 1  458e8070-3a5b-41a2-9946-25b519bfc8f4  ethernet  --
           

3. Change the assignment of an IP address to the DLS appliance's network interface from manual to automatic.
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   $ sudo nmcli conn edit "connection-name" ipv4.method auto
           

   connection-name

   The connection name that you obtained in the previous step.

   This example changes the assignment of an IP address to the DLS appliance's network interface Wired connection 1 from manual to automatic.

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   $ sudo nmcli conn edit "Wired connection 1" ipv4.method auto
           

4. Remove the static IP address that was set for the DLS appliance from the DNS settings of the appliance's network interface.
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   $ sudo nmcli conn edit "connection-name" -ipv4.addresses ip-address-to-remove
           

   connection-name

   The connection name that you specified in the previous step.

   ip-address-to-remove

   The IP address that you want to remove, which is the static IP address that was set for the DLS appliance's network interface.

   This example removes the IP address 192.0.2.89 from the DNS settings of the DLS appliance's network interface Wired connection 1.

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   $ sudo nmcli conn edit "Wired connection 1" -ipv4.addresses 192.0.2.89
           

5. Restart the DLS appliance's networking service.
   1. Stop the DLS appliance's networking service.
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      $ sudo nmcli networking off
              

   2. Start the networking service.
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      $ sudo nmcli networking on
              

6. Restart the VM that hosts the DLS appliance.

2.10.3. Changing the Host Name of a VM-Based DLS Virtual Appliance

The host name of a VM-based DLS virtual appliance is preset in the virtual appliance image. If you require a specific host name, you can change the name from the hypervisor. Each DLS virtual appliance provides a shell script specifically for this purpose.

1. Use the hypervisor management console of the appliance to log in as the user dls_admin to the VM that hosts the DLS appliance. If the dls_admin user has not been registered, you can still log in to the VM as the dls_admin user with the default password welcome.
2. Run the /etc/adminscripts/set-hostname.sh script.
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   $ /etc/adminscripts/set-hostname.sh
           

3. When prompted, enter your choice of new host name for the VM-based DLS virtual appliance.

2.10.4. Expanding the Disk Space on a DLS Virtual Appliance

You can use the management interface to the NVIDIA Licensing application to expand the disk space of the DLS virtual appliance.

Perform this task on the Hypervisor where your DLS appliance is installed.

1. Turn off the virtual machine.
2. Expand the virtual hard disk associated to the VM through the Hypervisor console.
3. Right-click on the VM and navigate to the Edit Settings.
4. Expand the disk space from the console.
5. Click OK to confirm.
6. Start the Virtual Machine.
7. Login to the Virtual Machine as the dls_system user through the Hypervisor console.
8. Run the following script:
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   /etc/adminscripts/expand_disk.sh
           

   Ignore the log message that says:
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   Information: you may need to update /etc/fstab
           

9. Validate the disk size for the /dev/mapper/vgnls--si--0-root using the df -h command.

2.10.5. Configuring NTP on a DLS Virtual Appliance

Network Time Protocol (NTP) Configuration is when the customer needs to sync the clock of their License Server to a desired time-keeping server.

1. Open a web browser and connect to the URL https://dls-vm-ip-address.

   dls-vm-ip-address

   The IP address or, if defined, the fully qualified domain name or the CNAME of the VM on which the DLS virtual appliance is installed.

   You can get the IP address from the management console of your hypervisor.

2. On the login page that opens, provide the user credentials for the DLS administrator user on the DLS virtual appliance and click LOGIN.
3. In the left navigation pane, click SETTINGS.
4. On the Service Instance Settings page that opens, expand the NTP Server Configuration section.
5. In the NTP Server Configuration section, enter the IP address or domain name of one or more NTP servers, with the addresses or names of multiple servers separated by commas.
6. Click CONFIGURE.

How you configure a service instance depends on whether the service is a Cloud License Service (CLS) instance or a Delegated License Service (DLS) instance.

DLS Instance Instructions

You administer and manage a DLS instance through the NVIDIA Licensing application on the virtual appliance that hosts the DLS instance and through the NVIDIA Licensing Portal.

Before configuring a DLS instance, ensure that the virtual appliance that will host the instance has been installed and configured as explained in Installing and Configuring the DLS Virtual Appliance.

To configure a DLS instance, follow this sequence of instructions:

1. Optional: Changing the Name and Description of a DLS Instance
2. Instructions for creating a license server or converting a legacy NVIDIA vGPU software license server:
   • Creating a License Server on the NVIDIA Licensing Portal
   • Converting Legacy NVIDIA vGPU Software License Servers to NLS License Servers
3. Instructions for registering the DLS instance:
   • Registering an on-Premises DLS Instance with the NVIDIA Licensing Portal
   • Registering a DLS Instance on an Air-Gapped Network with the NVIDIA Licensing Portal
4. Binding a License Server to a Service Instance
5. Installing a License Server on a DLS Instance

3.1. Changing the Name and Description of a DLS Instance

By default, a DLS instance is created with the name DEFAULT_timestamp and the description ON_PREM_SERVICE_INSTANCE. To distinguish a DLS instance on the NVIDIA Licensing Portal when multiple DLS instances are configured, change these defaults to a meaningful name and the description.

Perform this task from the DLS virtual appliance.

1. Log in to the DLS virtual appliance that is hosting the instance whose name and description you want to change.
2. In the left navigation pane of the NVIDIA Licensing dashboard, click SERVICE INSTANCE.
3. On the Service Instance page that opens, click EDIT.
4. In the Edit Service Instance dialog box that opens, type your choice of name and description for the instance and click UPDATE.
   Note:

   The instance name cannot contain special characters.

   The name and description of the instance are updated on the Service Instance page.

After changing the name of a DLS instance, follow the instructions in Creating a License Server on the NVIDIA Licensing Portal.

3.2. Creating a License Server on the NVIDIA Licensing Portal

To be able to allot licenses to an NVIDIA License System instance, you must create at least one license server on the NVIDIA Licensing Portal. Creating a license server defines the set of licenses to be allotted.

You can also create multiple servers on the NVIDIA Licensing Portal and distribute your licenses across them as necessary, for example to group licenses functionally or geographically.

1. In the NVIDIA Licensing Portal, navigate to the organization or virtual group for which you want to create the license server.
   1. If you are not already logged in, log in to the NVIDIA Enterprise Application Hub and click NVIDIA LICENSING PORTAL to go to the NVIDIA Licensing Portal.
   2. Optional: If your assigned roles give you access to multiple virtual groups, click View settings at the top right of the page and in the My Info window that opens, select the virtual group from the Virtual Group drop-down list, and close the My Info window.

   If no license servers have been created for your organization or virtual group, the NVIDIA Licensing Portal dashboard displays a message asking if you want to create a license server.

2. In the left navigation pane of the NVIDIA Licensing Portal dashboard, expand LICENSE SERVER and click CREATE SERVER. The Create License Server wizard is started.

   

   If you are adding a license server to an organization or virtual group for which a license server has already been created, click CREATE SERVER.

   The Create License Server wizard opens.

   

3. On the Basic details page of the wizard, provide the details of your license server.
   1. Ensure that the Create legacy server option is not set. Setting this option creates a legacy NVIDIA vGPU software license server, not a license server for NVIDIA License System.
   2. In the Server Name field, enter your choice of name for the license server.
   3. In the Description field, enter a text description of the license server. This description is required and will be displayed on the details page for the license server that you are creating.
   4. Optional: If you want NVIDIA License System to automatically bind the license server to and install it on the default CLS instance, select the Express CLS Installation? option.
   5. Optional: If you want to use this license server for node-locked licenses, select the Node-locked licensing mode? option.
   6. Click Next: Select features.
4. On the Select features page of the wizard, add the licenses for the products that you want to allot to this license server. For each product, add the licenses as follows:
   1. In the list of products, select the product for which you want to add licenses.

   2. In the text-entry field in the ADDED column, enter the number of licenses for the product that you want to add.

      

   3. Click Next: Preview server creation.

5. On the Preview server creation page, click CREATE SERVER.

   

3.3. Converting Legacy NVIDIA vGPU Software License Servers to NLS License Servers

To simplify the process of migrating to NLS and to preserve the distribution of licenses on your existing fleet of legacy NVIDIA vGPU software license servers, you can convert your existing license servers to NLS license servers. When a legacy NVIDIA vGPU software license server is converted, the name of the license server and the licensed products allotted to the server are preserved.

Converting your legacy NVIDIA vGPU software license servers to NLS license servers affects the servers only on the NVIDIA Licensing Portal. Your legacy NVIDIA vGPU software license servers continue to serve licenses to clients until you reconfigure your clients to use the converted NLS license servers.

1. In the NVIDIA Licensing Portal, navigate to the organization or virtual group to which the legacy license server belongs.
   1. If you are not already logged in, log in to the NVIDIA Enterprise Application Hub and click NVIDIA LICENSING PORTAL to go to the NVIDIA Licensing Portal.
   2. Optional: If your assigned roles give you access to multiple virtual groups, click View settings at the top right of the page and in the My Info window that opens, select the virtual group from the Virtual Group drop-down list, and close the My Info window.
2. In the left navigation pane of the NVIDIA Licensing Portal dashboard, expand LICENSE SERVERS and click LIST SERVERS.
3. On the License Servers page that opens, click MIGRATE LEGACY SERVERS.
4. In the Migrate Legacy Servers To NVIDIA License System (NLS) pop-up window that opens, select the license servers that you want to convert and click MIGRATE.

The license servers that you selected are converted. In the list on the License Servers page, the Legacy label against the name of each converted server is removed.

3.4. Registering an on-Premises DLS Instance with the NVIDIA Licensing Portal

A DLS instance is created automatically when the virtual appliance on which the instance resides is installed. However, to enable the instance to be bound to a license server, you must register the instance with the NVIDIA Licensing Portal.

Registering an on-premises DLS instance with the NVIDIA Licensing Portal involves the exchange of a DLS instance token between the instance and the NVIDIA Licensing Portal.

A DLS instance token is created by a DLS instance. It identifies the DLS instance to the NVIDIA Licensing Portal and enables it to locate the NVIDIA Licensing Portal. After downloading the token from the DLS instance, you must upload it to the NVIDIA Licensing Portal to complete the registration of the service instance.

1. If you are not already logged in, log in to the NVIDIA Licensing application at the IP address of the VM on which the DLS virtual appliance is installed.
2. In the left navigation pane of the NVIDIA Licensing dashboard, click SERVICE INSTANCE.
3. On the Service Instance Details page that opens, from the ACTIONS menu, choose Download DLS Instance Token. A DLS instance token file that is named dls_instance_token_mm-dd-yyyy-hh-mm-ss.tok is downloaded.
4. In the NVIDIA Licensing Portal, navigate to the organization or virtual group for which you are registering the service instance.
   1. If you are not already logged in, log in to the NVIDIA Enterprise Application Hub and click NVIDIA LICENSING PORTAL to go to the NVIDIA Licensing Portal.
   2. Optional: If your assigned roles give you access to multiple virtual groups, click View settings at the top right of the page and in the My Info window that opens, select the virtual group from the Virtual Group drop-down list, and close the My Infowindow.
5. On Service Instances page that opens, from the Actions menu, choose Register DLS Instance.

6. In the Register DLS Instance window that opens, select the New installation option and click SELECT INSTANCE TOKEN.

   

7. In the file browser that opens, navigate to the folder that contains the DLS instance token file that is named dls_instance_token_mm-dd-yyyy-hh-mm-ss.tok that you downloaded and select the file.
8. Back in the Register DLS Instance window, click UPLOAD TOKEN. The list of pending registrations is opened and the service instance identified by the DLS instance token that you uploaded is listed.
9. In the list of pending registrations, follow the Register link for the service instance identified by the DLS instance token that you uploaded. The service instance is added to the list of registered service instances.

After registering an on-premises DLS instance with the NVIDIA Licensing Portal, follow the instructions in Binding a License Server to a Service Instance.

3.5. Enabling your Organization to Register DLS Instances Manually

By default, users in your organization must register DLS instances by downloading DLS instance tokens to upload to the NVIDIA Licensing Portal. If you want users in your organization to be able to register DLS instances by entering their details manually on the NVIDIA Licensing Portal, you must enable this option explicitly.

1. If you are not already logged in, log in to the NVIDIA Enterprise Application Hub and click NVIDIA LICENSING PORTAL to go to the NVIDIA Licensing Portal.
2. Click View settings at the top right of the page.
3. In the My Info window that opens, select the Alternate service instance registration option.

   

4. Close the My Infowindow.

If you want users in your organization to be able again to register DLS instances by downloading DLS instance tokens to upload to the NVIDIA Licensing Portal, deselect the Alternate service instance registration option.

3.6. Registering a DLS Instance on an Air-Gapped Network with the NVIDIA Licensing Portal

If your DLS instance is on an air-gapped network, you cannot download a DLS instance token to upload to the NVIDIA Licensing Portal to register the instance. Instead, you must register the instance by entering its details manually on the NVIDIA Licensing Portal.
Before you begin, ensure that your organization administrator has enabled your organization to register DLS instances manually. For more information, refer to Enabling your Organization to Register DLS Instances Manually.

1. If you are not already logged in, log in to the NVIDIA Licensing application at the IP address of the VM on which the DLS virtual appliance is installed.
2. In the left navigation pane of the NVIDIA Licensing dashboard, click SERVICE INSTANCE.
3. On the Service Instance Details page that opens, from the ACTIONS menu, choose Pre-Register Service Instance.
4. In the Pre-Register DLS Service Instance window that opens, click PRE-REGISTER SERVICE INSTANCE.
5. On the Service Instance page, note the information about the DLS instance that you will need when you register it by entering its details manually on the NVIDIA Licensing Portal.
   • Service Instance ID
   • Name
   • Description
6. In the NVIDIA Licensing Portal, navigate to the organization or virtual group for which you are registering the service instance.
   1. If you are not already logged in, log in to the NVIDIA Enterprise Application Hub and click NVIDIA LICENSING PORTAL to go to the NVIDIA Licensing Portal.
   2. Optional: If your assigned roles give you access to multiple virtual groups, click View settings at the top right of the page and in the My Info window that opens, select the virtual group from the Virtual Group drop-down list, and close the My Infowindow.

7. In the left navigation pane of the NVIDIA Licensing Portal dashboard, click SERVICE INSTANCES.

   

8. On Service Instances page that opens, from the ACTIONS menu, choose Register DLS for air-gapped network.

9. In the Register DLS Instance for Air-Gapped Network window that opens, enter the name, service instance ID, and description that you obtained in Step 5, and click REGISTER.

   

After registering the DLS instance, perform the following sequence of tasks to complete the configuration of the instance:

1. Bind a license server to the DLS instance that you registered as explained in Binding a License Server to a Service Instance.
2. Download and install the license server on the virtual appliance that hosts DLS instance as explained in Installing a License Server on a DLS Instance.

3.7. Deleting a Service Instance

When a service instance is deleted, any license servers that are bound to and installed on the service instance are uninstalled and freed from it. Deleting a DLS instance on which license servers are installed forcibly removes all licensed products from the servers and returns the licensed products to their entitlements. This behavior enables you to recover licenses from a failed DLS instance.

If you are deleting a CLS instance on which license servers are installed, remove all licensed products from the servers as explained in Managing Licenses and Licensed Products on a License Server.
Perform this task on the NVIDIA Licensing Portal. The procedure for deleting a service instance is the same for CLS instances and DLS instances.

1. In the NVIDIA Licensing Portal, navigate to the organization or virtual group to which the service instance belongs.
   1. If you are not already logged in, log in to the NVIDIA Enterprise Application Hub and click NVIDIA LICENSING PORTAL to go to the NVIDIA Licensing Portal.
   2. Optional: If your assigned roles give you access to multiple virtual groups, click View settings at the top right of the page and in the My Info window that opens, select the virtual group from the Virtual Group drop-down list, and close the My Info window.

2. In the left navigation pane, click SERVICE INSTANCE.

   

3. In the list of service instances on the Service Instances page that opens, from the Actions menu for the service instance, choose Delete.
4. When asked to confirm that you want to delete the service instance, click DELETE.

3.8. Binding a License Server to a Service Instance

Binding a license server to a service instance ensures that licenses on the server are available only from that service instance. As a result, the licenses are available only to the licensed clients that are served by the service instance to which the license server is bound.

You can bind multiple license servers to the same CLS instance but only one license server to the same DLS instance. If you want to use a different license server than the license server that was originally bound to a DLS instance, free the license sever as explained in Freeing a License Server from a Service Instance.
This task is necessary only if you are not using the default CLS instance.

1. In the NVIDIA Licensing Portal, navigate to the organization or virtual group to which the license server belongs.
   1. If you are not already logged in, log in to the NVIDIA Enterprise Application Hub and click NVIDIA LICENSING PORTAL to go to the NVIDIA Licensing Portal.
   2. Optional: If your assigned roles give you access to multiple virtual groups, click View settings at the top right of the page and in the My Info window that opens, select the virtual group from the Virtual Group drop-down list, and close the My Info window.
2. In the left navigation pane of the NVIDIA Licensing Portal dashboard, expand LICENSE SERVERS and click LIST SERVERS.
3. In the list of license servers on the License Servers page that opens, from the Actions menu for the license server, choose Bind.
4. In the Bind Service Instance pop-up window that opens, select the service instance to which you want to bind the license server and click BIND. The Bind Service Instance pop-up window confirms that the license server has been bound to the service instance.

After a license server has been bound to a service instance, the license server is freed from the service instance when the service instance is deleted. You can also free a license sever as explained in Freeing a License Server from a Service Instance.

3.9. Freeing a License Server from a Service Instance

If you want to move a license server to a different service instance, free the license server before binding it to and installing it on the new service instance. If you want to use a different license server than the license server that was originally bound to a DLS instance, free the license sever from the DLS instance first.

Ensure that one of the following prerequisites is met:

• The license server has not been installed on the service instance.
• No licenses on a license server that is already installed are checked out by licensed clients. What happens if this prerequisite is not met depends on the type of the service instance:
  • CLS instance: The NVIDIA Licensing Portal prevents the license server from being freed from the service instance.
  • DLS instance: Because the instance is not connected to the NVIDIA Licensing Portal, the NVIDIA Licensing Portal allows the license server to be freed from the service instance. However, any attempt to install a license server on the service instance fails.

1. In the NVIDIA Licensing Portal, navigate to the organization or virtual group to which the license server belongs.
   1. If you are not already logged in, log in to the NVIDIA Enterprise Application Hub and click NVIDIA LICENSING PORTAL to go to the NVIDIA Licensing Portal.
   2. Optional: If your assigned roles give you access to multiple virtual groups, click View settings at the top right of the page and in the My Info window that opens, select the virtual group from the Virtual Group drop-down list, and close the My Info window.
2. In the left navigation pane of the NVIDIA Licensing Portal dashboard, expand LICENSE SERVERS and click LIST SERVERS.
3. In the list of license servers on the License Servers page that opens, from the Actions menu for the license server, choose Unbind.
4. When prompted to confirm that you want to unbind the license server, click UNBIND.

After freeing the license server, you can reuse it by following this sequence of instructions:

1. Binding a License Server to a Service Instance
2. Installing a License Server on a Service Instance

3.10. Installing a License Server on a Service Instance

After binding a license server to a service instance, you must install the license server on the service instance to make the licenses on the server available to the instance. If you change the licenses or licensed products on a license server that is bound to a DLS instance, you must update the instance with the latest version of the license server.

This task is necessary only if you are not using the default CLS instance.
After creating and installing a license server on a service instance, manage the licenses on the server by creating a client configuration token and, optionally, creating license pools and fulfillment conditions. For more information, see Managing Licenses on a License Server.

3.10.1. Installing a License Server on a DLS Instance

1. In the NVIDIA Licensing Portal, navigate to the organization or virtual group for which the license server was created.
   1. If you are not already logged in, log in to the NVIDIA Enterprise Application Hub and click NVIDIA LICENSING PORTAL to go to the NVIDIA Licensing Portal.
   2. Optional: If your assigned roles give you access to multiple virtual groups, click View settings at the top right of the page and in the My Info window that opens, select the virtual group from the Virtual Group drop-down list, and close the My Info window.
2. In the left navigation pane of the NVIDIA Licensing Portal dashboard, expand LICENSE SERVER and click LIST SERVERS.
3. In the list of license servers on the License Servers page that opens, click the name of the license server that you want to install.
4. In the License Server Details page that opens, from the Actions menu, choose Download.
5. In the Download License File window that opens, click Download. A license server file that is named license_mm-dd-yyyy-hh-mm-ss.bin is downloaded.
6. If you are not already logged in, log in to the NVIDIA Licensing application at the IP address of the VM on which the DLS virtual appliance is installed. After you log in, the information that is displayed on the NVIDIA Licensing dashboard depends on whether a license server has already been installed on the DLS virtual appliance.
   • If a license server has not been installed on the DLS virtual appliance, the NVIDIA Licensing dashboard displays a message asking if you want to install a license server.
   • Otherwise, the NVIDIA Licensing dashboard displays the License Server Details page for the installed license server.
7. Install or update the license server on the DLS virtual appliance. Whether you install or update the license server depends on whether a license server has already been installed on the DLS virtual appliance.

   • If a license server has not been installed on the DLS virtual appliance, on the NVIDIA Licensing dashboard, click SELECT LICENSE SERVER FILE.

     

   • If a license server has already been installed on the DLS virtual appliance, update the license server.

     1. From the ACTIONS menu for the license server, choose Update server from NLP.

     2. In the Update License Server pop-up window that opens, click SELECT LICENSE SERVER FILE.

        

8. In the file browser that opens, navigate to the folder that contains the license server file named license_mm-dd-yyyy-hh-mm-ss.bin that you downloaded and select the file.
9. When asked if you want to install the selected file, click INSTALL.

NVIDIA Licensing dashboard is updated with the details of the license server that you installed.

After installing a license server on a service instance, you can manage the licenses to be served from the server by distributing them among a number of license pools and by defining fulfillment conditions for requests from licensed clients. In this way, you can reserve licenses for specific types of users.

For example:

• An organization in which some users are using graphics-intensive computer-aided design (CAD) tools, while other users are using only office productivity tools can create a pool of NVIDIA RTX Virtual Workstation licenses for the CAD tool users and a pool of GRID Virtual PC licenses for the users of office productivity tools.
• An organization in which some users are performing mission-critical tasks can create a reserve pool of licences available only to these users and a pool of licenses available to all users. By setting suitable fulfillment conditions, the organization can ensure that when the pool of licenses available to all users is exhausted, only license requests from users performing mission-critical tasks are fulfilled from the reserve pool.

When a license server is installed on a service instance, a single default license pool and a single default fulfillment condition are created on the server. The default license pool initially contains all licenses allotted to the server. The default fulfillment condition allows any client to be served from the default license pool. If you want all your licensed clients to be served licenses from the same license pool under the same conditions, you can generate a client configuration token without creating any license pools or fulfillment conditions. For more information about client configuration tokens, see Generating a Client Configuration Token.

4.1. Navigating to the License Server Details Page for a License Server

How to navigate to the License Server Details page for a license server depends on whether you are performing the task on the NVIDIA Licensing Portal on a DLS instance.

1. If you are not already logged in, log in to the web user interface for administering the license server.

   • On the NVIDIA Licensing Portal, log in to the NVIDIA Enterprise Application Hub and click NVIDIA LICENSING PORTAL to go to the NVIDIA Licensing Portal.

     The NVIDIA Licensing Portal dashboard opens.

   • On a DLS instance, log in to the NVIDIA Licensing application at the IP address of the VM on which the DLS virtual appliance is installed.

     The License Server Details page for the license server on the DLS virtual appliance opens. No further action is required.

   The remaining steps are required for the NVIDIA Licensing Portal only.

2. If your assigned roles give you access to multiple virtual groups, click View settings at the top right of the page and in the My Info window that opens, select the virtual group from the Virtual Group drop-down list, and close the My Info window.
3. In the left navigation pane of the NVIDIA Licensing Portal dashboard, expand LICENSE SERVER and click LIST SERVERS.
4. In the list of license servers on the License Servers page that opens, click the name of the license server for which you want to manage licenses.

4.2. Managing License Pools

License pools enable you to divide the product features on a license server so that different categories of users are served licenses from different license pools. All licenses are served from a license pool. Only licenses on a license server that belong to a license pool are available to be served to license clients.

When a license server is installed on a service instance, a single default license pool is created on the server. The default license pool initially contains all licenses allotted to the server. You can subdivide the licenses on license server into any number of license pools. However, if you want to serve all licenses on a server from a single pool, you can use the default license pool without creating any additional license pools.

4.2.1. Creating a License Pool

If the only license pool on the license server is the initial default pool, return any licenses that you want to allocate to the license pool to the license server as explained in Managing Licenses and Licensed Products in a License Pool. When a license server is created, a default license pool that contains all licences on the server is created. When the default license pool contains all licences on the server, the CREATE LICENSE POOL button is inactive.

1. Navigate to the License Server Details page of the license server on which you want to create the license pool. For instructions, see Navigating to the License Server Details Page for a License Server.
2. In the License Server Details page that opens, disable the license server by clicking DISABLE SERVER and, when prompted, confirm that you want to disable the license server. When the license server is disabled, it cannot serve licenses to licensed clients.
3. From the ACTIONS menu, choose Create Pool.

   The Create License Pool pop-up window opens.

   

4. In the License Pool Name field, enter your choice of name for the license pool. The name must be a list four characters long, may contain only letters and numbers, and must not contain any spaces or special characters.
5. Add the licenses for the products that you want to allot to this license pool. For each product, add the licenses as follows:
   1. From the list of available features, select the product for which you want to add licenses. In the list of available features, only products on the license server that do not belong to another license pool are listed.
   2. In the text-entry field in the ADDED column, enter the number of licenses for the product that you want to add.

6. Click CREATE LICENSE POOL. The license pool is added to the list of license pools on the License Pools tab, in the License Server Details page.

   

7. On the Overview tab of the License Server Details page, enable the license server by clicking ENABLE SERVER and, when prompted, confirm that you want to enable the license server. The license server can now serve licenses to licensed clients.

After you create a license pool you can change the set of licenses in the pool as explained in the following topics:

• Managing Licenses and Licensed Products in a License Pool
• Migrating Licenses Between License Pools

4.2.2. Deleting a License Pool

When a license pool is deleted, all product features in the pool are returned to the license server to which the license pool belongs.

Ensure that no licenses in the pool are checked out by licensed clients. A license pool cannot be deleted while any of the licenses in the pool are checked out by a client.

1. Navigate to the License Server Details page of the license server to which the license pool belongs. For instructions, see Navigating to the License Server Details Page for a License Server.

2. In the License Server Details page that opens, click the License Pools tab.

   

3. In the list of license pools on the License Pools tab, from the Actions menu for the license pool, choose Disable. When the license pool is disabled, licenses cannot be served to licensed clients from the pool.
4. When prompted, confirm that you want to disable the license pool.
5. From the Actions menu for the license pool, choose Delete.

6. When asked if you want to delete the license pool, click DELETE LICENSE POOL.

   

4.2.3. Managing Licenses and Licensed Products in a License Pool

Manage licenses in a license pool if you need to add or remove licenses for a specific product in the pool. You can also add and remove licensed products from a license pool. When a licensed product is removed from a license pool, all licenses are returned to the license server.

1. Navigate to the License Server Details page of the license server to which the license pool belongs. For instructions, see Navigating to the License Server Details Page for a License Server.

2. In the License Server Details page that opens, click the License Pools tab.

   

3. In the list of license pools on the License Pools tab, from the Actions menu for the license pool, choose Disable. When the license pool is disabled, licenses cannot be served to licensed clients from the pool.
4. When prompted, confirm that you want to disable the license pool.
5. Expand the license pool that contains the licenses you want to manage.
6. From the Actions menu for the license pool, choose Manage features.
7. In the Manage Licenses pop-up window that opens, add or remove licenses for the licensed products that you are interested in.

   Add or remove licenses for each licensed product as follows:

   1. In the text-entry field in the ADDED column, enter the number of licenses for the product that you want to remain in the pool after updating licenses.

      • To add licenses to the pool, enter a number greater than the number already in the pool, but less than or equal to the total number of licenses available on the license server.

        

        If you enter a number greater than the total number of licenses available, an error occurs.

      • To remove licenses from the pool, enter a number less than the number already allocated to the server but greater than 0.

        For example, to remove 4 licenses from a pool that contains 10 licenses, leaving 6 licenses on the license server, enter the Licenses field to 6.

        You cannot set the Licenses field to 0. You must leave at least 1 license in the license pool. If you want to remove all licenses for a product from the license pool, you must remove the product from the pool by clicking the trash can icon.

   2. Click ADD.

   The product and number of licenses are added to the Features to Modify list.

8. After adding or removing all the licenses and licensed products that you are interested in, click UPDATE POOL FEATURES.

   

9. From the Actions menu for the license pool, choose Enable and, when prompted, confirm that you want to enable the license pool.

   

   Licenses can now be served to licensed clients from the pool.

4.2.4. Merging Two License Pools

If you need to consolidate licenses in two pools into a single pool, you can merge the two pools. When you merge two license pools, all licenses in the pool that you select as the origin pool are migrated to the pool you select as the destination pool and the origin pool is deleted.

Ensure that no licenses in the origin pool are checked out by licensed clients.A license pool cannot be merged while any of the licenses in the pool are checked out by a client. If a license in the pool is checked out, the Split or merge command for the pool is dimmed and inactive.

1. Navigate to the License Server Details page of the license server to which both the license pools belong. For instructions, see Navigating to the License Server Details Page for a License Server.

2. In the License Server Details page that opens, click the License Pools tab.

   

3. In the list of license pools on the License Pools tab, from the Actions menu for the license pool, choose Disable. When the license pool is disabled, licenses cannot be served to licensed clients from the pool.
4. When prompted, confirm that you want to disable the license pool.
5. From the Actions menu for the origin license pool, choose Split or merge.

6. In the Split / Merge Pool Features pop-up window that opens, select the destination license pool, select the Merge all features? option and click MERGE POOL.

   

All licenses in the pool that you select as the origin pool are migrated to the pool you select as the destination pool and the origin pool is deleted.

4.2.5. Migrating Licenses Between License Pools

If demand for licenses from different pools changes, you can migrate licenses between pools to meet the changed demand.

Ensure that the following prerequisites are met:

• Both pools between which you will migrate licenses already exist. If you want to migrate licenses to a new pool, create the pool first.
• No licenses that want to migrate are checked out by licensed clients.

1. Navigate to the License Server Details page of the license server to which both the license pools belong. For instructions, see Navigating to the License Server Details Page for a License Server.

2. In the License Server Details page that opens, click the License Pools tab.

   

3. In the list of license pools on the License Pools tab, from the Actions menu for the license pool, choose Disable. When the license pool is disabled, licenses cannot be served to licensed clients from the pool.
4. When prompted, confirm that you want to disable the license pool.
5. From the Actions menu for the license pool that you disabled, choose Split or merge.
6. From the Destination Pool drop-down list, select the license pool to which you want to migrate licenses.
7. In the Split / Merge Pool Features pop-up window that opens, select the licenses that you want migrate.

   Select the licenses for each licensed product as follows:

   1. In the list of products, select the licensed product for which you want to migrate licenses.
   2. In the text-entry field in the MOVE LICENSES column, enter the number of licenses for the product that you want to migrate. You must leave at least one license in the license pool from which you want to migrate licenses. If you want to remove all licenses for a product from the license pool, you must follow the instructions in Managing Licenses and Licensed Products in a License Pool.
   3. Click ADD.

   The product and number of licenses are added to the Features to Move list.

8. Click SPLIT POOL FEATURES.

   

9. From the Actions menu for the license pool, choose Enable and, when prompted, confirm that you want to enable the license pool.

   

   Licenses can now be served to licensed clients from the pool.

4.3. Managing Fulfillment Conditions

A fulfillment condition selects the license pools from which a license requested by a licensed client is served. It is a test that is applied to any request from a licensed client to determine if the request may be fulfilled from a specified set of license pools.

A fulfillment condition is bound to an ordered list of license pools. If a request satisfies the conditions of the test, the bound license pools are evaluated, in order, to determine if the request can be served from the pool.

A fulfillment condition may belong to only one license server. However, a license server may contain any number of fulfillment conditions. If a license server contains more than one fulfillment condition, the conditions are ordered. Every request from a licensed client is tested against each fulfillment condition in order either until the request can be fulfilled or has been tested against all the fulfillment conditions.

4.3.1. About Match Conditions

A match condition determines whether a request from a licensed client may be fulfilled from the license pools bound to a fulfillment condition. You must specify a match condition when you create or edit a fulfillment condition.

Reference Match

The Reference Match condition allows only clients that have been provisioned with the client configuration token associated with a fulfillment condition to be served. The client configuration token contains a unique identifier for the fulfillment condition. The client provides this unique identifier to the server whenever the client requests a license from the server.

Universal Match

The Universal Match condition allows any client to be served. It is the default fulfillment condition and is applied if more specific conditions are not met or they were unable to fulfill a request. Because this condition is the most general condition, it is the last condition to be evaluated.

Only one fulfillment condition for a license server may specify the Universal Match condition. If another fulfillment condition for the server specifies this match condition, it is absent from the Match Condition drop-down list.

4.3.2. Creating a Fulfillment Condition

1. Navigate to the License Server Details page of the license server to which the service instance is bound. For instructions, see Navigating to the License Server Details Page for a License Server.
2. In the License Server Details page that opens, disable the license server by clicking DISABLE SERVER and, when prompted, confirm that you want to disable the license server. When the license server is disabled, it cannot serve licenses to licensed clients.
3. From the Actions menu, choose Create Condition.

   The Create Fulfillment Condition wizard opens.

   

4. In the Name field, enter your choice of name for the fulfillment condition.
5. Optional: In the Description field, enter a text description of the fulfillment condition.
6. Under Match Condition, select a match condition to determine which clients may be served licenses from the license pools bound to this fulfillment condition.

   The following match conditions are defined:

   • Reference Match
   • Universal Match

7. Specify the sequence of license pools from which licenses will be served to clients.

   

   Licenses are served in the order in which they appear in the Bound license pools list.

   Note:

   You can specify a license pool in the license pool bindings for any number of fulfillment conditions.

   1. In the License Pools list, select the license pools from which you want licenses to be served and click the right arrow icon. The license pools are moved to the Bound license pools list.
   2. In the Bound license pools list, adjust the order of the license pools as necessary by selecting each license pool that you need to move and clicking the up arrow and down arrow icons to move the license pool to its required position in the sequence.

8. Click CREATE FULFILLMENT CONDITION.

   

   The fulfillment condition is added to the list of fulfillment conditions on the Fulfillment Conditions tab of the License Server Details page.

9. On the Overview tab of the License Server Details page, enable the license server by clicking ENABLE SERVER and, when prompted, confirm that you want to enable the license server. The license server can now serve licenses to licensed clients.

4.3.3. Deleting a Fulfillment Condition

To be able to serve licenses, a license server must have at least one fulfillment condition. If you delete all the fulfillment conditions that belong to a license server, the license server is no longer able to serve licenses to clients.

1. Navigate to the License Server Details page of the license server to which the service instance is bound. For instructions, see Navigating to the License Server Details Page for a License Server.

2. On the License Server Details page that opens, click the Fulfillment conditions tab.

   

3. In the list of fulfillment conditions on the Fulfillment conditions tab, from the Actions menu for fulfillment condition that you want to delete, choose Disable.

   

   When the fulfillment condition is disabled, it cannot be used to fulfill requests for licenses from licensed clients.

4. From the Actions menu for the fulfillment condition that you want to delete, choose Delete.
5. When asked if you want to delete the fulfillment condition, click DELETE FULFILLMENT CONDITION.

After a fulfillment condition is deleted, it is ignored in requests that specify the condition. Furthermore, if a request specifies only deleted fulfillment conditions, the request won't be satisfied.

4.3.4. Editing a Fulfillment Condition

1. Navigate to the License Server Details page of the license server to which the service instance is bound. For instructions, see Navigating to the License Server Details Page for a License Server.

2. On the License Server Details page that opens, click the Fulfillment conditions tab.

   

3. In the list of fulfillment conditions on the Fulfillment conditions tab, from the Actions menu for fulfillment condition that you want to delete, choose Disable.

   

   When the fulfillment condition is disabled, it cannot be used to fulfill requests for licenses from licensed clients.

4. From the Actions menu for the fulfillment condition that you want to edit, choose Edit. The Edit Fulfillment Condition wizard is started.

5. Use the Edit Fulfillment Condition wizard make the changes that you require.

   

   1. In the Name field, edit the name for the fulfillment condition.
   2. In the Description field, edit the description of the fulfillment condition.
   3. Under Match Condition, select a new match condition to determine which clients may be served licenses from the license pools bound to this fulfillment condition.
      Note:

      If you change the match condition, you must regenerate all client configuration tokens that specified the fulfillment condition and provision all affected licensed clients with the new token.

      The following match conditions are defined:

      • Reference Match
      • Universal Match
   4. Click Next: Select license pools.

   5. Modify the sequence of license pools from which licenses will be served to clients.

      

      Use the left and right arrow icons to move selected license pools between the License Pools list and the Bound license pools list. Use the up and down arrow icons to adjust the order of the license pools in the Bound license pools list. Licenses are served in the order in which they appear in the Bound license pools list.

   6. Click Preview condition update.

6. Click EDIT FULFILLMENT CONDITION.

   

7. From the Actions menu for fulfillment condition that you edited, choose Enable. The fulfillment condition can now be used to fulfill requests for licenses from licensed clients.

4.3.5. Changing the Order of Fulfillment Conditions

By default, fulfillment conditions that are configured with the Reference Match condition are tested in the order in which they were added to a license server. You can change this order if you want the fulfillment conditions to be tested in a specific order.

Ensure that the license server contains at least two fulfillment conditions that are configured with the Reference Match condition.

1. Navigate to the License Server Details page of the license server to which the service instance is bound. For instructions, see Navigating to the License Server Details Page for a License Server.
2. In the License Server Details page that opens, disable the license server by clicking DISABLE SERVER and, when prompted, confirm that you want to disable the license server. When the license server is disabled, it cannot serve licenses to licensed clients.
3. Click REINDEX. The Reindex Fulfillment Conditions window opens.
4. Rearrange your fulfillment conditions in the order that you want. Move each fulfillment condition that you want to move up or down in the processing order as follows:
   1. In the Fulfillment Conditions list, select the condition that you want to move.
      Note:

      A fulfillment condition that is configured with the Universal Match condition is not displayed in this list because it is processed last.

   2. When hovering your cursor over the up and down arrows, your cursor will change into a hand. Use the hand cursor to drag the condition to the position in the processing order that you want.

      

5. After re-ordering the conditions, you will see the following alert: You have unsaved changes in the ordering. Click the alert to reindex the order of your fulfillment conditions. The order in which the fulfillment conditions are listed on the License Server Details page is updated to match the order that you specified.
6. On the Overview tab of the License Server Details page, enable the license server by clicking ENABLE SERVER and, when prompted, confirm that you want to enable the license server. The license server can now serve licenses to licensed clients.

4.4. Generating a Client Configuration Token

A client configuration token identifies the service instance, license servers, and fulfillment conditions to be used to serve a license in response to a request from a licensed client. This information must be exchanged between a service instance and a licensed client to enable the service instance to serve licenses to the client.

After generating a client configuration token, you copy it to each licensed client that you want to use the token. Each client then provides data from the token back to the server whenever the client requests a license from the server.

A client configuration token is valid for 12 years after it is generated.
Create one client configuration token for each combination of license servers and fulfillment conditions that you want to use to serve licenses in response to requests from licensed clients.

After creating a client configuration token from a service instance, copy the client configuration token to each licensed client that you want to use the combination of license servers and fulfillment conditions specified in the token.

4.4.1. Generating a Client Configuration Token for a DLS Instance

1. If you are not already logged in, log in to the NVIDIA Licensing application at the IP address of the VM on which the DLS instance resides.
2. In the left navigation pane, click SERVICE INSTANCE.

3. On the Service Instance page that opens, from the Actions menu for the DLS instance for which you want to generate a client configuration token, choose Generate client configuration token.

   

4. In the Generate Client Configuration Token pop-up window that opens, select the references that you want to include in the client configuration token.

   1. Click the Scope references tab, and from the list of scope references, select the scope references that you want to include.

      

      You must select at least one scope reference.

      Each scope reference specifies the license server that will fulfil a license request.

   2. Optional: Click the Fulfillment class references tab, and from the list of fulfillment class references, select the fulfillment class references that you want to include.

      

      Including fulfillment class references is optional.

   3. Optional: If you want the service instance, or each node in an HA cluster of instances, to be identified through its IP address, click the Server address preferences tab and select the address for the IP version that you want: IPv6 or IP v4.

      By default, a service instance, or each node in an HA cluster of instances, is identified through its fully qualified domain name.

      

   4. Click DOWNLOAD CLIENT CONFIGURATION TOKEN.

   A file named client_configuration_token_mm-dd-yyyy-hh-mm-ss.tok is saved to your default downloads folder.

You can decouple the leasing port from the UI port for auth and lease operations. Once you have done so, you can block the UI port for the client VM.

• All UI and leasing operations will be supported on the default HTTPS port, 443.
• Only leasing operations will be supported on the leasing port, 8082.

4.5. Generating Node-Locked Licenses

1. Navigate to the License Server Details page of the license server from which you want to generate node-locked licenses. For instructions, see Navigating to the License Server Details Page for a License Server.
2. In the License Server Details page that opens, ensure that the license server is enabled.
3. From the ACTIONS menu, choose Generate node-locked license.
4. In the Generate Node-Locked License pop-up window that opens, configure the node-locked licenses that you want to generate and click GENERATE.
   1. For each client to which you want to apply the license, enter the MAC address of the client in the text entry field and click Add MAC Address(es). You can specify the MAC address in any of the following formats:
      • As six two-digit hexadecimal numbers, separated by colons, for example, 00:00:5E:00:53:10
      • As six two-digit hexadecimal numbers, separated by hyphens, for example, 00-00-5E-00-53-10
      • As three four-digit hexadecimal numbers, separated by periods, for example, 0000.5E00.5310
   2. From the Available features drop-down list, select each product for which you want to generate a license.
      Note:

      The expiry date of the license generated for each product is the expiry date of the entitlement to which the product belongs. No options are provided for setting the date on which you want the node-locked license to expire.

   A ZIP archive named nll.zip is created and downloaded to your default downloads folder. This ZIP archive contains the following files:

   • One license file for each client whose MAC address you entered
   • An index file named index.txt to enable you identify the license file that was created for each client from its MAC address
5. When you're ready to configure your licensed clients with the node-locked licenses that you generated, extract the contents of the ZIP archive nll.zip.

After extracting the contents of the ZIP archive nll.zip, configure each licensed client for which you generated a node-locked license as explained in Configuring a Licensed Client with an NVIDIA vGPU Software Node-Locked License.

4.6. Disabling and Enabling a License Server, License Pool, or Fulfillment Condition

When modifying a license server, license pool, or fulfillment condition, you must disable it before modifying it. To ensure that service instance can serve licenses to licensed clients, you must ensure that its license servers, licence pools and fulfillment conditions are enabled.

You disable and enable a license server, license pool, or fulfillment condition from the relevant License Server Details page. For information about how to navigate to the License Server Details page, see Navigating to the License Server Details Page for a License Server.

• To disable a license server, navigate to the Overview tab of the License Server Details page for the license server. Then click DISABLE SERVER and, when prompted, confirm that you want to disable the license server. When the license server is disabled, it cannot serve licenses to licensed clients.
• To enable a license server, navigate to the Overview tab of the License Server Details page for the license server. Then click ENABLE SERVER and, when prompted, confirm that you want to enable the license server. The license server can now serve licenses to licensed clients.
• To disable a license pool, navigate to the License Pools tab of the License Server Details page for the license server to which the license pool belongs. Then from the Actions menu for the license pool, choose Disable. When the license pool is disabled, licenses cannot be served to licensed clients from the pool.
• To enable a license pool, navigate to the License Pools tab of the License Server Details page for the license server to which the license pool belongs. Then from the Actions menu for the license pool, choose Enable. Licenses can now be served to licensed clients from the pool.
• To disable a fulfillment condition, navigate to the Fulfillment conditions tab of the License Server Details page for the license server to which the fulfillment condition belongs. Then from the Actions menu for the fulfillment condition, choose Disable. When the fulfillment condition is disabled, it cannot be used to fulfill requests for licenses from licensed clients.
• To enable a fulfillment condition, navigate to the Fulfillment conditions tab of the License Server Details page for the license server to which the fulfillment condition belongs. Then from the Actions menu for the fulfillment condition, choose Enable. The fulfillment condition can now be used to fulfill requests for licenses from licensed clients.

4.7. Editing License Server Settings

License server settings control how a service instance handles licenses that have been served to licensed clients. You can edit the settings for an individual license server or for all license servers that are bound to a service instance. Any setting that you edit for an individual license server overrides the setting for license servers that are bound to the service instance.

1. Edit the settings that you want to change and click SAVE SETTINGS.
   1. View the Feature Overage setting.

      Maximum Allowed Feature Overage

      This setting cannot be changed from its preset value and is displayed for information only. For counted licenses, it is the maximum percentage of the number of licenses available that can be leased to license clients for a limited period of time when all available licenses are checked out. For example, if you have 100 concurrent user licenses and all licenses are checked out, up to an additional 10 licenses can leased to license clients for a limited period of time. During periods when overage allowances are being used, administrative warnings may be generated.

   2. In the left navigation pane, click Lease Duration Settings and edit the following settings.

      The effect of these settings depends on whether the request for a license from a client specifies how long the license shall remain valid. A request from a client specifies how long the license shall remain valid only if the LicenseInterval Windows registry value or Linux configuration parameter is set. For more information, refer to Virtual GPU Client Licensing User Guide.

      Lease Duration

      The period of time for which a license remains valid after the license has been served if this period is not specified in the request for a license. At the end of the lease period, the license becomes invalid at the client and becomes available to be served to other licensed clients.

      This setting applies only if the request for a license from the client does not specify how long the license shall remain valid. Otherwise, this setting is ignored.

      Maximum Lease Duration

      The maximum period of time for which a license remains valid at a licensed client after the license has been served to the client.

      If the request for a license from the client specifies that the license shall remain valid for a longer period, this setting overrides the period specified in the request.

      Minimum Lease Duration

      The minimum period of time for which a license remains valid at a licensed client after the license has been served to the client.

      If the request for a license from the client specifies that the license shall remain valid for a shorter period, this setting overrides the period specified in the request.

   3. In the left navigation pane, click Other Settings and edit the following settings.

      Default Renewal Period

      The percentage of the lease period that must elapse before a licensed client can renew a license. By renewing a license before the lease period has elapsed, a licensed client can extend its license beyond the original expiration time of the license. Extending a license ensures that if a licensed client temporarily loses network connectivity to the licensing service, there is enough time for connectivity to be restored before the license expires.

      For example, if the lease period is one day and the renewal period is 20%, the client attempts to renew its license every 4.8 hours. If network connectivity is lost, the loss of connectivity is detected during license renewal and the client has 19.2 hours in which to re-establish connectivity before its license expires.

      Offline Lease

      Enable or disable offline lease of licenses to clients. When offline lease of licenses to clients is enabled, clients can keep their licenses even when powered off.

2. Individual license server only: On the License Server Details page, enable the license server by clicking ENABLE SERVER and, when prompted, confirm that you want to enable the license server. The license server can now serve licenses to licensed clients.

4.8. Manually Releasing Leases from a Server

This section will describe options to manually release licenses using the License Server GUI if immediate license freeing is needed.

In the example where a License Client VM has been un-gracefully stopped and deleted from existence, the license will remain in-use on the server and will not be freed until the lease has reached expiration. Because of this, manual admin release from the server is useful and these steps will describe the procedure.

4.8.1. Manual Release of Specific Clients Licensed to an NLS Service Instance

This section will describe how to locate and manually release specific VMs from the server.

For DLS:

1. Navigate to the DLS GUI and login with dls_admin.
2. Navigate to the Leases tab from the left navigation pane.

   Optional: Use the Search Bar to search for specific License Clients to release for. To filter, you can search by: ID, Feature Name, Client Origin Ref, Client Hostname, Client MAC Addresses, or Client IP Addresses.

3. Click the red Release button to manually release the Virtual Machine.

   

4. Click Force Release on the dialog that pops up.

For CLS:

1. Navigate to the NVIDIA Licensing Portal and login.
2. Navigate to the Leases tab from the left navigation pane.
3. From the drop-down in the header, select the Service Instance from which held leases will be force released.

   Optional: Use the Search Bar to search for specific License Clients to release for. To filter, you can search by: ID, Feature Name, Client Origin Ref, Client Hostname, Client MAC Addresses, or Client IP Addresses.

4. Click the red Release button to manually release the Virtual Machine.

   

5. Click Force Release on the dialog that pops up.

4.8.2. Manual Force Bulk Release of All Clients Licensed to an NLS Service Instance

This section will describe how to locate and force release all leases that are in-use on a given NVIDIA License System Service Instance.

For DLS:

1. Navigate to the DLS GUI and login with dls_admin.
2. Navigate to the Leases tab from the left navigation pane.
3. Click the red Release All button in the top-right corner.

   

4. Click Force Release on the dialog that pops up.

For CLS:

1. Navigate to the NVIDIA Licensing Portal and login.
2. Navigate to the Leases tab from the left navigation pane.
3. From the drop-down in the header, select the Service Instance from which held leases will be force released.
4. Click the red Release All button in the top-right corner.
5. Click Force Release on the dialog that pops up.

Reset the Bulk Release Limit

A total of 5 licenses can be bulk released from the server. Once this limit has been reached, users can install the reset bulk release limit token.

For DLS:

1. Navigate to the NVIDIA Licensing Portal and login.
2. Click on the Service Instance page.
3. From the Actions menu on right, select Download Force Release All Token.
4. Once the token is downloaded, it must be uploaded on the DLS VM.
5. If there are active leases and the user has exhausted the bulk force release limit on DLS, an option will be shown to upload this token to reset the limit.

For CLS:

1. Navigate to the NVIDIA Licensing Portal and login.
2. Click on the Service Instance page.
3. From the Actions menu on right, select Reset Force Release All Limit. This will reset the limit back to the default value of 5.
4. If the user performs this action before exhausting the current limit, the operation will not be allowed to execute.

4.8.3. Forcibly Releasing a Node-Locked License

If a client that is licensed with a node-locked license fails or is shut down abruptly, the license remains in use and is not released until it expires. If you can't release the license by restarting and gracefully shutting down the client, you can use the license server to which the license is allotted to forcibly release it.

1. Navigate to the License Server Details page of the license server to which the license is allotted. For instructions, see Navigating to the License Server Details Page for a License Server.
2. In the License Server Details page that opens, click the Leases tab.
3. In the list of lease files on the Leases tab, follow the Release link for the license that you want to release.
4. When asked if you want to forcibly release the license, click FORCE RELEASE.

4.9. Supporting Non-Persistent Desktop Pools

Non-persistent desktop pools are used by VM instances with reused MAC addresses, such as VM instances created by using Citrix Machine Creation Services (MCS) or VMware Instant Clone technology. If you plan to serve licenses to non-persistent desktop pools from a service instance, prevent the service instance from serving multiple licenses to clients that have the same MAC address.

When a service instance supports non-persistent desktop pools, it checks the MAC address of the client in each request to check out a license. If the request specifies the MAC address of a client that has already checked out a license, the existing checkout is cleared before the request is fulfilled.

4.9.1. Supporting Non-Persistent Desktop Pools from a DLS Instance

1. If you are not already logged in, log in to the NVIDIA Licensing application at the IP address of the VM on which the DLS instance resides.
2. In the left navigation pane, click SERVICE INSTANCE.
3. On the Service Instance page that opens, from the ACTIONS menu, choose Toggle Non-Persistent Desktop Pools.
4. When asked if you want to support non-persistent desktop pools, click ENABLE NON-PERSISTENT DESKTOP POOLS.

To use a licensed product, each NVIDIA License System client system must be able to obtain a license for the product either from a service instance of NVIDIA License System or from a license file installed locally on the client system. A client system can be a VM that is configured with NVIDIA vGPU, a VM that is configured for GPU pass through, or a physical host to which a physical GPU is assigned in a bare-metal deployment.

5.1. Configuring a Licensed Client with a Networked License

A client with a network connection obtains a license by leasing it from a NVIDIA License System service instance. The service instance serves the license to the client over the network from a pool of floating licenses obtained from the NVIDIA Licensing Portal. The license is returned to the service instance when the licensed client is shut down.

Before configuring a licensed client, ensure that the following prerequisites are met:

• The NVIDIA vGPU software graphics driver is installed on the client.
• The client configuration token that you want to deploy on the client has been created from the NVIDIA Licensing Portal or the DLS as explained in index.html#generating-client-configuration-token-for-cls-instance.
• Ports 443 and 80 in your firewall or proxy must be open to allow HTTPS traffic between a service instance and its the licensed clients. These ports must be open for both CLS instances and DLS instances.
  Note:

  For DLS releases before DLS 1.1, ports 8081 and 8082 were also required to be open to allow HTTPS traffic between a DLS instance and its licensed clients. Although these ports are no longer required, they remain supported for backward compatibility.

The NVIDIA vGPU software graphics driver creates a default location in which to store the client configuration token on the client. You can specify a custom location for the client configuration token by adding a registry value on Windows or by setting a configuration parameter on Linux. By specifying a shared network location that is mounted locally on the client, you can simplify the deployment of the same client configuration token on multiple clients. Instead of copying the client configuration token to each client individually, you can keep only one copy in the shared network location.

The process for configuring a licensed client is the same for CLS and DLS instances but depends on the OS that is running on the client.

5.1.1. Configuring a Licensed Client with a Networked License on Windows

Perform this task from the client.

1. Physical GPUs only: Add the FeatureType DWord (REG_DWORD) registry value to the Windows registry key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\nvlddmkm\Global\GridLicensing.
   Note:

   • If you're licensing an NVIDIA vGPU, the FeatureType DWord (REG_DWORD) registry value is not required. NVIDIA vGPU software automatically selects the correct type of license based on the vGPU type.
   • If you are upgrading an existing driver, this value is already set.
   • For NVIDIA vGPU software releases before 15.0, add the registry value to the Windows registry key HKEY_LOCAL_MACHINE\SOFTWARE\NVIDIA Corporation\Global\GridLicensing.
   Set this value to the feature type of a GPU in pass-through mode or a bare-metal deployment:
   • 0: NVIDIA Virtual Applications
   • 2: NVIDIA RTX Virtual Workstation
   • 4: NVIDIA Virtual Compute Server
2. Optional: If you want store the client configuration token in a custom location, add the ClientConfigTokenPath String (REG_SZ) registry value to the Windows registry key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\nvlddmkm\Global\GridLicensing.
   Note:

   For NVIDIA vGPU software releases before 15.0, add the registry value to the Windows registry key HKEY_LOCAL_MACHINE\SOFTWARE\NVIDIA Corporation\Global\GridLicensing.

   Set the value to the full path to the folder in which you want to store the client configuration token for the client. You can use the syntax \\fully-qualified-domain-name\share-name for the path to the folder. By default, the client searches for the client configuration token in the %SystemDrive%:\Program Files\NVIDIA Corporation\vGPU Licensing\ClientConfigToken folder.

   By specifying a shared network drive mapped on the client, you can simplify the deployment of the same client configuration token on multiple clients. Instead of copying the client configuration token to each client individually, you can keep only one copy in the shared network drive.

3. If a non-transparent proxy server is configured between your licensed client and a CLS instance, provide the information about the proxy server that the licensed client requires.
   Note:

   Authenticated non-transparent proxy servers are not supported before NVIDIA vGPU software release 15.2.

   Provide this information by adding the following registry values to the Windows registry key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\nvlddmkm\Global\GridLicensing.

   Note:

   For NVIDIA vGPU software releases before 15.0, add the registry value to the Windows registry key HKEY_LOCAL_MACHINE\SOFTWARE\NVIDIA Corporation\Global\GridLicensing.

   1. For all non-transparent proxy servers, provide the address and port number of the proxy server in the following Windows registry values.

      ProxyServerAddress String (REG_SZ)

      The address of the proxy server. The address can be a fully qualified domain name such as iproxy1.example.com, or an IP address such as 10.31.20.45.

      ProxyServerPort String (REG_SZ)

      The port number of the proxy server.

   2. If necessary, provide the credentials of the user that will log in to the proxy server. This information is required for proxy servers that use the following authentication methods:
      • Basic authentication
      • Microsoft Windows Challenge/Response (Microsoft NTLM) authentication for a client that is not a member of an Active Directory domain

      ProxyUserName String (REG_SZ)

      The username of the user that will log in to the proxy server.

      ProxyCredentialsFilePath String (REG_SZ)

      The full path to the file that contains the encrypted credentials of the user that will log in to the proxy server, for example, C:\Program Files\NVIDIA Corporation\vGPU Licensing\ProxySettings\proxy-credentials.dat.

      This file is generated as explained in Generating an Encrypted Credentials File.

4. If you are storing the client configuration token in a custom location, create the folder in which you want to store the client configuration token.

   If the folder is a shared network drive, ensure that the following conditions are met:

   • The folder is mapped locally on the client to the path specified in the ClientConfigTokenPath registry value.
   • The COMPUTER object has the rights to access the folder on the shared network drive. The COMPUTER object requires these rights because the license service runs before any user logs in.

   If you are storing the client configuration token in the default location, omit this step. The default folder in which the client configuration token is stored is created automatically after the NVIDIA vGPU software graphics driver is installed.

5. Copy the client configuration token to the folder in which you want to store the client configuration token. Ensure that this folder contains only the client configuration token that you want to deploy on the client and no other files or folders. If the folder contains more than one client configuration token, the client uses the newest client configuration token in the folder.
   • If you want to store the client configuration token in the default location, copy the client configuration token to the %SystemDrive%:\Program Files\NVIDIA Corporation\vGPU Licensing\ClientConfigToken folder.
   • If you want to store the client configuration token in a custom location, copy the token to the folder that you created in the previous step.
6. Restart the NvDisplayContainer service.

The NVIDIA service on the client should now automatically obtain a license from the CLS or DLS instance.

After a Windows licensed client has been configured, options for configuring licensing for a network-based license server are no longer available in NVIDIA Control Panel.

5.1.2. Configuring a Licensed Client with a Networked License on Linux

Perform this task from the client.

1. As root, open the file /etc/nvidia/gridd.conf in a plain-text editor, such as vi.
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   $ sudo vi /etc/nvidia/gridd.conf
           

   Note:

   You can create the /etc/nvidia/gridd.conf file by copying the supplied template file /etc/nvidia/gridd.conf.template.

2. Add the FeatureType configuration parameter to the file /etc/nvidia/gridd.conf on a new line as FeatureType="value".

   value depends on the type of the GPU assigned to the licensed client that you are configuring.

   GPU Type	Value
   NVIDIA vGPU	1. NVIDIA vGPU software automatically selects the correct type of license based on the vGPU type.
   Physical GPU	The feature type of a GPU in pass-through mode or a bare-metal deployment: 0: NVIDIA Virtual Applications 2: NVIDIA RTX Virtual Workstation 4: NVIDIA Virtual Compute Server

   This example shows how to configure a licensed Linux client for NVIDIA Virtual Compute Server.

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   # /etc/nvidia/gridd.conf.template - Configuration file for NVIDIA Grid Daemon
   …
   # Description: Set Feature to be enabled
   # Data type: integer
   # Possible values:
   # 0 => for unlicensed state
   # 1 => for NVIDIA vGPU
   # 2 => for NVIDIA RTX Virtual Workstation
   # 4 => for NVIDIA Virtual Compute Server
   FeatureType=4
   ...
           

3. If a non-transparent proxy server is configured between your licensed client and a CLS instance, provide the information about the proxy server that the licensed client requires.
   Note:

   Authenticated non-transparent proxy servers are not supported before NVIDIA vGPU software release 15.2.

   1. For all non-transparent proxy servers, provide the address and port number of the proxy server.

      Provide this information by adding the following configuration parameters to the file /etc/nvidia/gridd.conf on separate lines.

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      ProxyServerAddress=address
      ProxyServerPort=port
              

      address

      The address of the proxy server. The address can be a fully qualified domain name such as iproxy1.example.com, or an IP address such as 10.31.20.45.

      port

      The port number of the proxy server.

      This example sets the address of a proxy server to 10.31.20.45 and the port number to 3128.

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      # /etc/nvidia/gridd.conf.template - Configuration file for NVIDIA Grid Daemon
      …
      ProxyServerAddress=10.31.20.45
      ProxyServerPort=3128
      ...
              

   2. If necessary, provide the credentials of the user that will log in to the proxy server.

      This information is required for proxy servers that use basic authentication.

      Provide this information by adding the following configuration parameters to the file /etc/nvidia/gridd.conf on separate lines.

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      ProxyUserName=domain\username
      ProxyCredentialsFilePath=path
              

      domain

      The domain to which the user belongs, for example, example.com.

      username

      The username of the user that will log in to the proxy server, for example, clsuser.

      path

      The full path to the file that contains the encrypted credentials of the user that will log in to the proxy server, for example, /etc/nvidia/proxy-credentials.dat.

      This file is generated as explained in Generating an Encrypted Credentials File.

      This example sets the domain and username of the user that will log in to the proxy server to example.com\clsuser and the path to the file that contains the encrypted credentials of the user to /etc/nvidia/proxy-credentials.dat.

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      # /etc/nvidia/gridd.conf.template - Configuration file for NVIDIA Grid Daemon
      …
      ProxyUserName=example.com\clsuser
      ProxyCredentialsFilePath=/etc/nvidia/proxy-credentials.dat
      ...
              

4. Optional: If you want store the client configuration token in a custom location, add the ClientConfigTokenPath configuration parameter to the file /etc/nvidia/gridd.conf on a new line as ClientConfigTokenPath="path"

   path

   The full path to the directory in which you want to store the client configuration token for the client. By default, the client searches for the client configuration token in the /etc/nvidia/ClientConfigToken/ directory.

   By specifying a shared network directory that is mounted locally on the client, you can simplify the deployment of the same client configuration token on multiple clients. Instead of copying the client configuration token to each client individually, you can keep only one copy in the shared network directory.

   This example shows how to configure a licensed Linux client to search for the client configuration token in the /mnt/nvidia/ClientConfigToken/ directory. This directory is a mount point on the client for a shared network directory.

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   # /etc/nvidia/gridd.conf.template - Configuration file for NVIDIA Grid Daemon
   …
   ClientConfigTokenPath=/mnt/nvidia/ClientConfigToken/
   ...
           

5. Save your changes to the /etc/nvidia/gridd.conf file and close the file.
6. If you are storing the client configuration token in a custom location, create the directory in which you want to store the client configuration token.

   If the directory is a shared network directory, ensure that it is mounted locally on the client at the path specified in the ClientConfigTokenPath configuration parameter.

   If you are storing the client configuration token in the default location, omit this step. The default directory in which the client configuration token is stored is created automatically after the NVIDIA vGPU software graphics driver is installed.

7. Copy the client configuration token to the directory in which you want to store the client configuration token. Ensure that this directory contains only the client configuration token that you want to deploy on the client and no other files or directories. If the directory contains more than one client configuration token, the client uses the newest client configuration token in the directory.
   • If you want to store the client configuration token in the default location, copy the client configuration token to the /etc/nvidia/ClientConfigToken directory.
   • If you want to store the client configuration token in a custom location, copy the token to the directory that you created in the previous step.
8. Ensure that the file access modes of the client configuration token allow the owner to read, write, and execute the token, and the group and others only to read the token.
   1. Determine the current file access modes of the client configuration token.
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      # ls -l client-configuration-token-directory
              

   2. If necessary, change the mode of the client configuration token to 744.
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      # chmod 744 client-configuration-token-directory/client_configuration_token_*.tok
              

   client-configuration-token-directory

   The directory to which you copied the client configuration token in the previous step.

9. Restart the nvidia-gridd service.

The NVIDIA service on the client should now automatically obtain a license from the CLS or DLS instance.

After a Linux licensed client has been configured, options for configuring licensing for a network-based license server are no longer available in NVIDIA X Server Settings.

5.1.3. Generating an Encrypted Credentials File

Some authentication methods require a licensed client to provide user credentials when the client authenticates with a proxy server. To enable the client to provide these credentials securely without input from a user, you must generate a file that contains these credentials in an encrypted form that the client can read.

The following authentication methods require an encrypted credentials file:

• Basic authentication
• Microsoft Windows Challenge/Response (NTLM) authentication for a client that is not a member of an Active Directory domain

How to generate an encrypted credentials file depends on the OS that client is running. For detailed instructions, refer to the following topics:

• Generating an Encrypted Credentials File on Windows
• Generating an Encrypted Credentials File on Linux

5.1.3.1. Generating an Encrypted Credentials File on Windows

Perform this task in a Windows PowerShell window as the Administrator user on the client.

1. Change to the C:\Program Files\NVIDIA Corporation\vGPU Licensing\ProxySettings folder.
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   PS C:\> cd "C:\Program Files\NVIDIA Corporation\vGPU Licensing\ProxySettings"
           

2. Run the grid-proxy-credentials Windows PowerShell script.
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   PS C:\> .\grid-proxy-credentials.ps1
           

3. In the Select Output File Path window that opens, navigate to the directory in which you want to generate the credentials file, enter the file name, and click Save.

   

4. When prompted in the Windows PowerShell window, specify the password of the user that will log in to the proxy server when the licensed client requests a license.

Provide the path to this file when configuring a licensed client that will use the file as explained in Configuring a Licensed Client with a Networked License on Windows.

5.1.3.2. Generating an Encrypted Credentials File on Linux

Perform this task in a Linux command shell on the client.

1. Run the grid-proxy-credentials.sh command.
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   # /usr/lib/nvidia/grid-proxy-credentials.sh -o output-file-path
           

   output-file-path

   The full path to the credentials file that you are generating. Ensure that the directory in the path exists.

   Tip:

   To get help information for this command, type /usr/lib/nvidia/grid-proxy-credentials.sh --help.

   This example creates the credentials file /etc/nvidia/proxy-credentials.dat.

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   # /usr/lib/nvidia/grid-proxy-credentials.sh -o /etc/nvidia/proxy-credentials.dat
           

2. When prompted, specify the password of the user that will log in to the proxy server when the licensed client requests a license.

Provide the path to this file when configuring a licensed client that will use the file as explained in Configuring a Licensed Client with a Networked License on Linux.

5.2. Configuring a Licensed Client with an NVIDIA vGPU Software Node-Locked License

A client system without a network connection or on an air-gapped network can obtain a node-locked NVIDIA vGPU software license from a file installed locally on the client system.

Before configuring a licensed client with a node-locked license, ensure that the following prerequisites are met:

• The NVIDIA vGPU software graphics driver is installed on the client.
• The ZIP archive that contains the node-locked license file with which you want to license the client has been generated and downloaded, and its contents extracted as explained in Generating Node-Locked Licenses.

The NVIDIA vGPU software graphics driver creates a default location in which to store the license file on the client. You can specify a custom location for the license file by adding a registry value on Windows or by setting a configuration parameter on Linux.

The process for configuring a licensed client with a node-locked license depends on the OS that is running on the client.

5.2.1. Configuring a Licensed Client with a Node-Locked License on Windows

Perform this task from the VM or physical host.

1. Optional: If you want to store the license file in a custom location, create a local folder on the VM or physical host in which to store the license file.

   If you want to store the license file in the default location, omit this step. The default folder in which the license file is stored is created automatically after the NVIDIA vGPU software graphics driver is installed.

2. Optional: If you want store the license file in a custom location, add the LicenseFilePath String (REG_SZ) registry value to the Windows registry key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\nvlddmkm\Global\GridLicensing.
   Note:

   For NVIDIA vGPU software releases before 15.0, add the registry value to the Windows registry key HKEY_LOCAL_MACHINE\SOFTWARE\NVIDIA Corporation\Global\GridLicensing.

   Set the value to the full path to the folder that you created in the previous step.

   If you want to store the license file in the default location, omit this step. By default, the client searches for the license file in the %SystemDrive%:\Program Files\NVIDIA Corporation\vGPU Licensing\License folder.

3. Use the index file named index.txt to identify the license file for the client from its MAC address. This example shows the index.txt file that identifies the license file generated for each client in the following table.

   Client MAC Address	License File Name
   00:00:5E:00:53:10	1a6e8f90-599e-4459-b2e0-06f67fc183fd.lic
   00:00:5E:00:53:27	32894809-3f79-4461-9d53-100b7f6bc338.lic

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   [{"id": "VM0", "pevi": [{"id": "MAC", "val": "00:00:5E:00:53:27", "mod": null}], "file_name": "32894809-3f79-4461-9d53-100b7f6bc338.lic"}, 
   {"id": "VM1", "pevi": [{"id": "MAC", "val": "00:00:5E:00:53:10", "mod": null}], "file_name": "1a6e8f90-599e-4459-b2e0-06f67fc183fd.lic"}]
           

4. Copy the NVIDIA license .lic file that was generated for the licensed client to a local folder on the client. Ensure that this folder contains only the license file that you want to deploy on the client and no other files or folders. If the folder contains more than one license file, the client uses the newest license file in the folder.
   • If you want to store the license file in the default location, copy the license file to the %SystemDrive%:\Program Files\NVIDIA Corporation\vGPU Licensing\License folder.
   • If you want to store the license file in a custom location, copy the license file to the folder that you specified in the previous step.
5. Reboot the VM or physical host.

The NVIDIA service on the VM or physical host should now automatically obtain a license from the license file.

After a Windows VM or physical host has been configured with a node-locked NVIDIA vGPU software license, options for configuring licensing for a network-based license server are no longer available in NVIDIA Control Panel.

5.2.2. Configuring a Licensed Client with a Node-Locked License on Linux

Perform this task from the VM or physical host.

1. Optional: If you want to store the license file in a custom location, create a local directory on the VM or physical host in which to store the license file.

   If you are storing the license file in the default location, omit this step. The default directory in which the license file is stored is created automatically after the NVIDIA vGPU software graphics driver is installed.

2. Optional: If you want store the license file in a custom location, add the LicenseFilePath configuration parameter to the file /etc/nvidia/gridd.conf. If you want to store the license file in the default location, omit this step. By default, the client searches for the license file in the /etc/nvidia/vGPULicense directory.
   1. As root, open the file /etc/nvidia/gridd.conf in a plain-text editor, such as vi.
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      $ sudo vi /etc/nvidia/gridd.conf
              

      Note:

      You can create the /etc/nvidia/gridd.conf file by copying the supplied template file /etc/nvidia/gridd.conf.template.

   2. Add the following line to the file /etc/nvidia/gridd.conf.
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      LicenseFilePath="path"
              

      path

      The full path to the directory that you created in the previous step.

      This example shows how to configure a licensed Linux client to search for the license file in the /etc/nvidia/nll directory.

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      # /etc/nvidia/gridd.conf.template - Configuration file for NVIDIA Grid Daemon
      …
      # Description: Used to specify the directory path which is checked for node-locked licensing files.
      # Data type: string
      # Format: "<directory path>"
      LicenseFilePath="/etc/nvidia/nll"
      ...
              

   3. Save your changes to the /etc/nvidia/gridd.conf file and close the file.
3. Use the index file named index.txt to identify the license file for the client from its MAC address. This example shows the index.txt file that identifies the license file generated for each client in the following table.

   Client MAC Address	License File Name
   00:00:5E:00:53:10	1a6e8f90-599e-4459-b2e0-06f67fc183fd.lic
   00:00:5E:00:53:27	32894809-3f79-4461-9d53-100b7f6bc338.lic

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   [{"id": "VM0", "pevi": [{"id": "MAC", "val": "00:00:5E:00:53:27", "mod": null}], "file_name": "32894809-3f79-4461-9d53-100b7f6bc338.lic"}, 
   {"id": "VM1", "pevi": [{"id": "MAC", "val": "00:00:5E:00:53:10", "mod": null}], "file_name": "1a6e8f90-599e-4459-b2e0-06f67fc183fd.lic"}]
           

4. Copy the NVIDIA license .lic file that was generated for the licensed client to a local directory on the client. Ensure that this directory contains only the license file that you want to deploy on the client and no other files or directories. If the directory contains more than one license file, the client uses the newest license file in the directory.
   • If you want to store the license file in the default location, copy the license file to the /etc/nvidia/vGPULicense directory.
   • If you want to store the license file in a custom location, copy the license file to the directory that you specified in the previous step.
5. Reboot the VM or physical host.

The NVIDIA service on the VM or physical host should now automatically obtain a license from the license file.

After a Linux VM or physical host has been configured with a file-based NVIDIA vGPU software license, options for configuring licensing for a networked license server are no longer available in NVIDIA X Server Settings.

5.3. Verifying the NVIDIA vGPU Software License Status of a Licensed Client

After configuring a client with an NVIDIA vGPU software license, verify the license status by displaying the licensed product name and status.

To verify the license status of a licensed client, run nvidia-smi with the –q or --query optionfrom the licensed client, not the hypervisor host. If the product is licensed, the expiration date is shown in the license status.

            

            
nvidia-smi -q
==============NVSMI LOG==============

Timestamp                                 : Wed Nov 23 10:52:59 2022
Driver Version                            : 525.60.06
CUDA Version                              : 12.0

Attached GPUs                             : 2
GPU 00000000:02:03.0
    Product Name                          : 
    Product Brand                         : 
    Product Architecture                  : Ampere
    Display Mode                          : Enabled
    Display Active                        : Disabled
    Persistence Mode                      : Enabled
    MIG Mode
        Current                           : Disabled
        Pending                           : Disabled
    Accounting Mode                       : Disabled
    Accounting Mode Buffer Size           : 4000
    Driver Model
        Current                           : N/A
        Pending                           : N/A
    Serial Number                         : N/A
    GPU UUID                              : GPU-ba5b1e9b-1dd3-11b2-be4f-98ef552f4216
    Minor Number                          : 0
    VBIOS Version                         : 00.00.00.00.00
    MultiGPU Board                        : No
    Board ID                              : 0x203
    Board Part Number                     : N/A
    GPU Part Number                       : 25B6-890-A1
    Module ID                             : N/A
    Inforom Version
        Image Version                     : N/A
        OEM Object                        : N/A
        ECC Object                        : N/A
        Power Management Object           : N/A
    GPU Operation Mode
        Current                           : N/A
        Pending                           : N/A
    GSP Firmware Version                  : N/A
    GPU Virtualization Mode
        Virtualization Mode               : VGPU
        Host VGPU Mode                    : N/A
    vGPU Software Licensed Product Product Name : License Status : Licensed (Expiry: 2022-11-23 10:41:16 GMT)
    …
    …
        

Perform these routine administration tasks as needed during the lifetime of the service instance.

6.1. Setting the Validity Period of a Lease Authorization Token for a Service Instance

You can set the validity period of a lease authorization token to either enhance performance or increase security. Increasing the validity period enhances performance by decreasing the frequency with which clients are authorized before the service instance grants a licensing request. Decreasing the expiration time increases security by increasing the frequency with which clients are authorized before the service instance grants a licensing request.

The default validity period is one hour. You can set the validity period to any value up to 24 hours.

6.1.1. Setting the Validity Period of a Lease Authorization Token for a DLS Instance

Perform this task on the NVIDIA Licensing application on the virtual appliance that hosts the DLS instance.

1. Open a web browser and connect to the URL https://dls-vm-ip-address.

   dls-vm-ip-address

   The IP address or, if defined, the fully qualified domain name or the CNAME of the VM on which the DLS virtual appliance is installed.

   You can get the IP address from the management console of your hypervisor.

2. On the login page that opens, provide the user credentials for the DLS administrator user on the DLS virtual appliance and click LOGIN.

3. In the left navigation pane of the NVIDIA Licensing dashboard, click SERVICE INSTANCE.

   

4. On the Service Instance page that opens, click EDIT SETTINGS.

5. Select Service Instance Settings at the top of the window that opens, modify Auth Token Expiry Time as needed, then click SAVE SETTINGS.

   

6.2. Migrating a DLS Instance

Migrating a DLS instance simplifies the upgrade of a DLS appliance. After installing a new version of the DLS appliance, you can transfer the license servers, user registration, IP address, and service instance from the existing DLS appliance to a new DLS appliance. However, event records on the existing DLS appliance are not migrated.

Considerations for Migrating an HA Cluster of DLS Instances

If you are upgrading the DLS appliance for the DLS instances in an HA cluster, migrate only the primary instance. During the migration process, all data is removed from the secondary DLS instance and the instance is removed from the cluster. After completing the migration process for the primary instance, you can configure an HA cluster from the new primary instance.

Types of Migrations Supported by NVIDIA License System

The type of migration to perform depends on whether the new version of the DLS virtual appliance is a software update that contains security updates and bug fixes or is a new major version.

In-place upgrade

An in-place upgrade enables you apply a software update to a DLS appliance when NVIDIA provides security updates and bug fixes. Upgrading a DLS appliance in place overinstalls the software updates on the existing appliance without any disruption in service. All data on the appliance is preserved during the upgrade. Because the updates are overinstalled on the existing appliance, you cannot change the platform type of a DLS appliance by performing an in-place upgrade.

Note:

In-place upgrades are supported starting with NVIDIA License System 3.0.0. NVIDIA License System versions earlier than 3.0.0 do not support in-place upgrades.

Portal-assisted migration

A portal-assisted migration enables you to perform a side-by-side upgrade of a DLS instance when NVIDIA releases a new major version of the DLS virtual appliance. To change the platform type from container to VM, from VM to container, or from any type of platform to a VM that supports non-persistent desktop pools, you must perform a portal-assisted migration.

Before You Begin

Ensure that the port mappings for ports 8081 and 8084 are not changed from their defaults. To prevent loss of data if a migration fails, create a snapshot of your DLS appliance before migrating it. If a migration fails, you can restore your DLS appliance from the snapshot. For information about how to create a snapshot and restore a DLS appliance from the snapshot, refer to the instructions for your appliance type in the following table.

Considerations for Migrating a DLS 1.0.0 or 1.0.1 Instance

If you are migrating a DLS 1.0.0 or 1.0.1 instance, the version shown on the VA Upgrade Job Progress page is 1.0.0 to preserve backwards compatibility.

After migrating a DLS 1.0.0 or 1.0.1 instance, you must change the password for the dls_admin user to enable or disable the dls_system user on the new instance.

6.2.1. Upgrading a DLS Appliance in Place

To provide security updates and bug fixes, NVIDIA periodically releases updates to the DLS appliance software. To apply a software update to a DLS appliance, upgrade the DLS appliance in place. Upgrading a DLS appliance in place overinstalls the software updates on the existing appliance without any disruption in service. All data on the appliance is preserved during the upgrade.

To upgrade a DLS appliance in place, follow this sequence of instructions:

1. Initiating an In-Place Upgrade to a DLS Appliance
2. The instructions for the type of platform on which the DLS appliance is hosted:
   • Upgrading a Container-Based DLS Appliance in Place
   • Upgrading a VM-Based DLS Appliance in Place

6.2.1.1. Initiating an In-Place Upgrade to a DLS Appliance

Initiating an in-place upgrade to a DLS appliance puts the instance that is hosted on the appliance into maintenance mode. If the instance is a node in an HA cluster of DLS instances, all nodes in the cluster are put into maintenance mode. In maintenance mode, a DLS instance can perform only licensing operations. All other operations are disabled.

For an HA cluster: Perform this task only from the DLS virtual appliance that hosts the current primary instance.

1. Log in to the DLS virtual appliance for which you want to initiate an in-place upgrade.
2. In the left navigation pane of the NVIDIA Licensing dashboard, click MAINTENANCE.
3. On the Maintenance page that opens, scroll down to the Virtual Appliance Upgrade section of the page.
4. Ensure that the Portal-Assisted Upgrade option is not set.
5. Click START IN-PLACE UPGRADE.

Follow the instructions for the type of platform on which the DLS appliance is hosted:

• Upgrading a Container-Based DLS Appliance in Place
• Upgrading a VM-Based DLS Appliance in Place

6.2.1.2. Upgrading a Container-Based DLS Appliance in Place

Ensure that the following prerequisites are met:

• The ZIP archive that contains the update to NVIDIA License System has been downloaded from the NVIDIA Licensing Portal.
• The upgrade has been initiated as explained in Initiating an In-Place Upgrade to a DLS Appliance.

For an HA cluster: Perform this task on each DLS appliance that hosts an instance in the cluster. Upgrade the DLS appliance for every other instance in the cluster before upgrading the DLS appliance that hosts the current primary instance.

1. Stop the DLS appliance container.
2. As the postgres user, run the /etc/dls/take-snapshot.sh script to create a snapshot of the PostgreSQL database container. The command for running the script depends on the container orchestration platform that you are using.

   Container Orchestration Platform	Command
   Docker	Copy Copied! $ docker exec -it --user postgres config-postgres-nls-si-0-1 /etc/dls/take-snapshot.sh
   Kubernetes	Copy Copied! $ kubectl exec -it db-container-pod -- su postgres -c "/etc/dls/take-snapshot.sh" db-container-pod The name of the PostgreSQL database container pod.
   Podman	Copy Copied! $ podman exec -it --user postgres config-postgres-nls-si-0-1 /etc/dls/take-snapshot.sh
   Red Hat OpenShift Container Platform	Copy Copied! $ kubectl exec -it db-container-pod -- su postgres -c "/etc/dls/take-snapshot.sh" db-container-pod The name of the PostgreSQL database container pod.
   VMware Tanzu Application Platform	Copy Copied! $ kubectl exec -it db-container-pod -- su postgres -c "/etc/dls/take-snapshot.sh" db-container-pod The name of the PostgreSQL database container pod.

3. Stop the PostgreSQL database container.
4. Back up the postgres-data, logs, and rabbitmq_data volumes.
5. Clean up the postgres-data and rabbitmq_data volumes.
   Note:

   Do not clean up the configurations volume.

6. Extract the contents of the ZIP archive that contains the update to NVIDIA License System .
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   $ sudo unzip nls-version-bios.zip
           

   version

   The version number of NVIDIA License System that you are upgrading to, for example, 2.2.1.

7. Deploy the updated containers on the existing host with the existing volume mappings. Follow the instructions for the container orchestration platform that you are using.

   Container Orchestration Platform	Instructions
   Docker	Deploying the Containerized DLS Software Image on Docker
   Kubernetes	Deploying the Containerized DLS Software Image on Kubernetes Platforms
   Podman	Deploying the Containerized DLS Software Image on Podman
   Red Hat OpenShift Container Platform	Deploying the Containerized DLS Software Image on Kubernetes Platforms
   VMware Tanzu Application Platform	Deploying the Containerized DLS Software Image on Kubernetes Platforms

8. Confirm that the NVIDIA Licensing application and associated software have been upgraded and that the existing data has been preserved on the DLS appliance.
   1. Log in as the dls_admin user to the DLS appliance that you just upgraded.
   2. In the left navigation pane, click SUPPORT.
   3. On the Support page that opens, confirm that the NVIDIA Delegated License System field displays the correct software version.
   4. In the left navigation pane, click SERVICE INSTANCE and confirm that the details of the DLS instance on the appliance have been preserved.
   5. In the left navigation pane, click DASHBOARD and confirm that the details of the installed license server have been preserved.

6.2.1.3. Upgrading a VM-Based DLS Appliance in Place

Ensure that the following prerequisites are met:

• The ZIP archive that contains the update to NVIDIA License System has been downloaded from the NVIDIA Licensing Portal.
• The upgrade has been initiated as explained in Initiating an In-Place Upgrade to a DLS Appliance.

Also ensure that the sudo DLS user account rsu_admin has been created.
For an HA cluster: Perform this task on each DLS appliance that hosts an instance in the cluster. Upgrade the DLS appliance for every other instance in the cluster before upgrading the DLS appliance that hosts the current primary instance.

1. Use the hypervisor management console of the appliance to log in as the user rsu_admin to the VM that hosts the DLS appliance.
2. Copy the ZIP archive that contains the update to NVIDIA License System to the /home/rsu_admin directory.
3. Extract the contents of the ZIP archive that contains the update to NVIDIA License System .
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   $ sudo unzip nls-version-bios.zip
           

   version

   The version number of NVIDIA License System that you are upgrading to, for example, 2.2.1.

4. Ensure that the current working directory is /home/rsu_admin.
5. Run the upgrade_dls_containers.sh script to upgrade the NVIDIA Licensing application and associated software on the DLS appliance.
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   $ sudo nls-version-bios/upgrade/upgrade_dls_containers.sh
           

   version

   The version number of NVIDIA License System that you are upgrading to, for example, 2.2.1.

6. Confirm that the NVIDIA Licensing application and associated software have been upgraded and that the existing data has been preserved on the DLS appliance.
   1. Log in as the dls_admin user to the DLS appliance that you just upgraded.
   2. In the left navigation pane, click SUPPORT.
   3. On the Support page that opens, confirm that the NVIDIA Delegated License System field displays the correct software version.
   4. In the left navigation pane, click SERVICE INSTANCE and confirm that the details of the DLS instance on the appliance have been preserved.
   5. In the left navigation pane, click DASHBOARD and confirm that the details of the installed license server have been preserved.
7. Back in the hypervisor management console of the appliance, run the confirm_dls_upgrade.sh script as the rsu_admin user to confirm the upgrade.
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   $ sudo nls-version-bios/upgrade/confirm_dls_upgrade.sh
           

   version

   The version number of NVIDIA License System that you are upgrading to, for example, 2.2.1.

6.2.1.4. Troubleshooting the In-Place Upgrade of a DLS Appliance

If the in-place upgrade of a DLS appliance fails, you can revert the appliance to its previous version. How to revert the appliance to its previous version depends on whether the upgrade failed for an entire HA cluster of DLS instances or only for some instances in the cluster.

• If the upgrade failed for an entire HA cluster of DLS instances, follow the instructions for the type of platform on which the DLS appliance is hosted:
  • VM-based appliance: Run the reset_upgrade_jobs.sh script to revert the appliance to its previous version.
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    $ sudo nls-version-bios/upgrade/reset_upgrade_jobs.sh
            

    version

    The version number of NVIDIA License System that you are upgrading to, for example, 2.2.1.

  • Container-based appliance:
    1. Stop the upgraded DLS appliance container.
    2. Restore the backed up postgres-data, logs, and rabbitmq_data volumes.
    3. Deploy the previous version of the containers on the existing host with the existing volume mappings.
• If the upgrade failed only for some instances in the cluster, recreate the cluster from a node that was successfully upgraded.
  1. Mark the upgraded node as the primary node in the cluster.
  2. Remove from the cluster any node for which the upgrade failed.
  3. Install or deploy a new DLS appliance with the same network configuration as the appliance that failed to be created.
  4. Add the new DLS appliance to the cluster.

6.2.2. Performing a Portal-Assisted Migration of a DLS Instance

A portal-assisted migration of a DLS instance enables you to perform a side-by-side upgrade of a DLS instance when NVIDIA releases a new major version of the DLS virtual appliance.

To perform a portal-assisted migration of a DLS instance, follow this sequence of instructions:

1. Registering the Migration of a DLS Instance with the NVIDIA Licensing Portal
2. Generating an Upgrade File for the DLS Instance that You are Migrating
3. Instructions for preparing a new appliance from which to generate a DLS instance token:
   • Preparing a New Appliance for a Standalone DLS Instance
   • Preparing a New Appliance for a VM-Based Node in an HA Cluster
   • Preparing a New Appliance for a Containerized Node in an HA Cluster
4. Transferring Migration Data to the DLS Instance on an Upgraded Virtual Appliance
5. For an HA cluster: Synchronizing Changes with the Primary Node in an HA Cluster
6. For an HA cluster: Configuring an HA Cluster of DLS Instances

6.2.2.1. Registering the Migration of a DLS Instance with the NVIDIA Licensing Portal

Registering the migration of a DLS instance with the NVIDIA Licensing Portal involves the exchange of a binary migration file between the instance and the NVIDIA Licensing Portal. After creating the migration file and downloading it from the DLS instance, you must upload it to the NVIDIA Licensing Portal to complete the registration.

1. Log in to the existing DLS virtual appliance that hosts the DLS instance that you want to migrate. The DLS instance must be either a standalone DLS instance or the primary node in an HA cluster.
2. In the left navigation pane of the NVIDIA Licensing dashboard, click MAINTENANCE.
3. On the Maintenance page that opens, scroll down to the Virtual Appliance Upgrade section of the page.
4. Set the Portal Assisted Upgrade option.
5. Click GENERATE MIGRATION FILE. If the DLS instance is the primary node in an HA cluster, a table that lists the nodes in the cluster is added to the Maintenance page. Each node in the table except the primary node has an UPGRADE button.
6. If a table that lists the nodes in the cluster is added to the Maintenance page, click UPGRADE for a secondary node in the table.
7. When prompted, confirm that you want to generate a migration file.

   Option	Description
   Standalone DLS instance	In the Generate Migration File window that opens, click GENERATE MIGRATION FILE.
   Node in an HA cluster	In the Trigger Portal Assisted Upgrade window that opens, click UPGRADE.

   Modifications to the existing DLS virtual appliance are blocked until the portal-assisted migration is complete. The state of the instance during the migration process depends on whether the instance is a standalone instance or a node in an HA cluster.

   • If the instance is a standalone DLS instance, all operations by the instance, including licensing operations, are disabled.
   • If the instance is a node in an HA cluster of DLS instances, all data is removed from the secondary nodes and the secondary nodes are removed from the cluster. The primary node in the cluster is put into maintenance mode and continues to operate as a standalone DLS instance. In maintenance mode, a DLS instance can perform only licensing operations. All other operations are disabled.
8. After the migration file has been generated, click DOWNLOAD MIGRATION FILE. A migration file that is named on_prem_migration_file_mm-dd-yyyy-hh-mm-ss.bin is saved to your downloads folder.
9. In the NVIDIA Licensing Portal, navigate to the organization or virtual group to which the DLS instance belongs.
   1. If you are not already logged in, log in to the NVIDIA Enterprise Application Hub and click NVIDIA LICENSING PORTAL to go to the NVIDIA Licensing Portal.
   2. Optional: If your assigned roles give you access to multiple virtual groups, select the virtual group to which the DLS instance belongs from the list of virtual groups at the top right of the page.

10. In the left navigation pane of the NVIDIA Licensing Portal dashboard, click SERVICE INSTANCES.

    

11. In the list of service instances on the Service Instances page that opens, from the Actions menu for the DLS instance, choose Upload Migration File.
12. In the Upload Migration File pop-up window that opens, click SELECT MIGRATION FILE.
13. In the file browser that opens, navigate to the folder that contains the migration file that is named on_prem_migration_file_mm-dd-yyyy-hh-mm-ss.bin that you downloaded and select the file.
14. Back in the Upload Migration File pop-up window, click UPLOAD.

Prepare a new appliance from which to generate a DLS instance token. How to prepare the appliance depends on the type of the appliance and the type of node that the appliance will host.

• Preparing a New Appliance for a Standalone DLS Instance
• Preparing a New Appliance for a VM-Based Node in an HA Cluster
• Preparing a New Appliance for a Containerized Node in an HA Cluster

6.2.2.2. Preparing a New Appliance for a Standalone DLS Instance

Migrating a DLS instance requires a DLS instance token to be generated from a appliance that is running the new version of the DLS software. Preparing a new appliance for a standalone DLS instance involves installing or deploying the new version of the DLS appliance in the same way as for a first-time installation of a DLS appliance.

Ensure that the ZIP archive that contains the latest containerized DLS software image or DLS virtual appliance image has been downloaded from the NVIDIA Licensing Portal.

1. Install or deploy the new version of the DLS appliance. For detailed instructions, refer to the following topics:
   • Installing the DLS Virtual Appliance Image on a Supported Hypervisor
   • Deploying a Containerized DLS Software Image
2. VM-based DLS appliance only: Start the new VM that hosts the upgraded DLS appliance.

Generate and upload the DLS instance token for the new virtual appliance to generate an upgrade file as explained in Generating an Upgrade File for the DLS Instance that You are Migrating.

6.2.2.3. Preparing a New Appliance for a VM-Based Node in an HA Cluster

Migrating a DLS instance requires a DLS instance token to be generated from a appliance that is running the new version of the DLS software. Preparing a new appliance for a VM-based node in an HA cluster involves installing the new version of the DLS appliance in the same way as for a first-time installation of a DLS appliance. The new appliance will host the secondary node in the cluster.

Ensure that the ZIP archive that contains the latest DLS virtual appliance image for your chosen hypervisor has been downloaded from the NVIDIA Licensing Portal.

1. Shut down the VM that hosts the existing secondary node from which you generated a migration file in Registering the Migration of a DLS Instance with the NVIDIA Licensing Portal.
2. Install the new version of the DLS appliance on your chosen hypervisor as explained in Installing the DLS Virtual Appliance Image on a Supported Hypervisor.
3. Configure the VM that hosts the new version of the DLS appliance with the same network properties as the VM that hosts the existing secondary node.

Generate and upload the DLS instance token for the new virtual appliance to generate an upgrade file as explained in Generating an Upgrade File for the DLS Instance that You are Migrating.

6.2.2.4. Preparing a New Appliance for a Containerized Node in an HA Cluster

Migrating a DLS instance requires a DLS instance token to be generated from a appliance that is running the new version of the DLS software. Preparing a new appliance for a containerized node in an HA cluster involves copying the latest DLS application container artifact to the container host for the existing secondary node. You are not required to deploy the new version of the DLS appliance in the same way as for a first-time installation of a DLS appliance.

Ensure that the ZIP archive that contains the latest containerized DLS software image has been downloaded from the NVIDIA Licensing Portal.
Perform this task on the container host for the existing secondary node from which you generated a migration file in Registering the Migration of a DLS Instance with the NVIDIA Licensing Portal.

1. Copy the downloaded DLS application container artifact to the container host.
2. Log in to the container host as the rsu_admin user.
3. As the rsu_admin user, run the following command:
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   $ sudo nls-version-bios/upgrade/clean_dls_upgrade.sh
           

   version

   The version number of NVIDIA License System that you are upgrading to, for example, 2.2.1.

Generate and upload the DLS instance token for the new virtual appliance to generate an upgrade file as explained in Generating an Upgrade File for the DLS Instance that You are Migrating.

6.2.2.5. Generating an Upgrade File for the DLS Instance that You are Migrating

After uploading the migration file for the DLS instance that you are migrating, you must generate an upgrade file for the instance. Generating the upgrade file involves generating and uploading the DLS instance token for the new virtual appliance that will host the migrated DLS instance.

Ensure that the new DLS appliance from which to generate a DLS instance token has been prepared as explained in the following topics:

• Preparing a New Appliance for a Standalone DLS Instance
• Preparing a New Appliance for a VM-Based Node in an HA Cluster
• Preparing a New Appliance for a Containerized Node in an HA Cluster

1. Open a web browser and connect to the URL https://dls-vm-ip-address.

   dls-vm-ip-address

   The IP address or, if defined, the fully qualified domain name or the CNAME of the VM on which the DLS virtual appliance is installed.

   You can get the IP address from the management console of your hypervisor.

2. On the Set Up page that opens, click UPGRADE.
3. On the Virtual Appliance Upgrade page that opens, click DOWNLOAD DLS INSTANCE TOKEN. A DLS instance token file that is named dls_instance_token_mm-dd-yyyy-hh-mm-ss.tok is downloaded.
4. Leave the Virtual Appliance Upgrade page open in the browser.
5. In the NVIDIA Licensing Portal, navigate to the organization or virtual group for which you are registering the DLS instance.
   1. If you are not already logged in, log in to the NVIDIA Enterprise Application Hub and click NVIDIA LICENSING PORTAL to go to the NVIDIA Licensing Portal.
   2. Optional: If your assigned roles give you access to multiple virtual groups, select the virtual group for which you are registering the DLS instance from the list of virtual groups at the top right of the page.

6. In the left navigation pane of the NVIDIA Licensing Portal dashboard, click SERVICE INSTANCES.

   

7. On the Service Instances page that opens, from the ACTIONS menu, choose Upload on-premises (DLS) instance token.
8. In the Upload DLS Instance Token window that opens, click SELECT INSTANCE TOKEN.
9. In the file browser that opens, navigate to the folder that contains the DLS instance token file that is named dls_instance_token_mm-dd-yyyy-hh-mm-ss.tok that you downloaded and select the file.
10. Back in the Upload DLS Instance Token window, complete the generation of the upgrade file:
    1. Select the Upgrade existing option.
    2. From the drop-down list, select the DLS instance for which you previously uploaded the migration file.
    3. Click UPLOAD TOKEN.

    An upgrade file is generated and the Download Upgrade File link is added for the selected DLS instance.

After registering the DLS instance on an upgraded virtual appliance with the NVIDIA Licensing Portal, follow the instructions in Transferring Migration Data to the DLS Instance on an Upgraded Virtual Appliance.

6.2.2.6. Transferring Migration Data to the DLS Instance on an Upgraded Virtual Appliance

1. In the NVIDIA Licensing Portal, navigate to the organization or virtual group to which the DLS instance belongs.
   1. If you are not already logged in, log in to the NVIDIA Enterprise Application Hub and click NVIDIA LICENSING PORTAL to go to the NVIDIA Licensing Portal.
   2. Optional: If your assigned roles give you access to multiple virtual groups, select the virtual group to which the DLS instance belongs from the list of virtual groups at the top right of the page.
2. In the list of service instances on the Service Instances page that opens, follow the Download Upgrade File link for the DLS instance. A file named dls_upgrade_mm-dd-yyyy-hh-mm-ss.bin is saved to your default downloads folder.
3. Return to the Virtual Appliance Upgrade page of the NVIDIA Licensing application on the upgraded virtual appliance.
4. On the Virtual Appliance Upgrade page, click UPLOAD UPGRADE FILE.
5. In the Upload Upgrade File pop-up window that opens, click Choose File.
6. In the file browser that opens, navigate to the folder that contains the upgrade file that is named dls_upgrade_mm-dd-yyyy-hh-mm-ss.bin that you downloaded and select the file.
7. Back in the Upload Upgrade File, click UPLOAD.

If you are transferring migration data for a standalone DLS instance, no further action is required. The virtual appliance is ready for use.

If you are transferring migration data for a node in an HA cluster of DLS instances, synchronize data changes with the primary node in the cluster as explained in Synchronizing Changes with the Primary Node in an HA Cluster. The data changes to synchronize arise from licensing operations that were performed during the migration.

6.2.2.7. Synchronizing Changes with the Primary Node in an HA Cluster

1. Log in to the existing DLS virtual appliance that hosts the DLS instance from which you want to synchronize data. This instance is operating in maintenance mode.
2. In the left navigation pane of the NVIDIA Licensing dashboard, click MAINTENANCE.
3. On the Maintenance page that opens, scroll down to the Virtual Appliance Upgrade section of the page.
4. In table that lists the nodes in the cluster, click Synchronize changes. Any changed data on the existing DLS instance is copied to the new DLS instance. After the changed data has been copied, the old and the new instance are operating in maintenance mode.
5. Log in to the new DLS virtual appliance that hosts the DLS instance to which the data was synchronized.

   If you are already logged in, reload the browser page.

6. On the NVIDIA Licensing dashboard, click Acknowledge. All data on the existing DLS instance is removed. The new DLS instance is now the primary node in the cluster and continues to be updated with changes from the existing DLS instance. When the new DLS instance is updated with all changes from the existing instance, the existing DLS instance is deleted from the DLS appliance that hosts it.
7. Delete the DLS appliance that hosted the existing DLS instance.

For seven days after the new DLS instance has been updated, the Maintenance displays information about the cluster nodes before migration. You can use this information to re-create the cluster after the migration.

1. Install or deploy a new DLS virtual appliance for the secondary nodes in the cluster as explained in the following topics:
   • Installing the DLS Virtual Appliance Image on a Supported Hypervisor
   • Deploying a Containerized DLS Software Image

   To get information such as IP addresses about the nodes in the cluster before the upgrade, refer to the Maintenance page for the upgraded primary node.

2. Add the new secondary nodes to the cluster as explained in Configuring an HA Cluster of DLS Instances.

6.3. Reconfiguring the Rsyslog Tool in a DLS Virtual Appliance

A VM-based DLS virtual appliance uses the Rsyslog tool for forwarding log messages in an IP network. If you want to export events and alerts for the DLS instance on the appliance to an external syslog or security information and event management (SIEM) server, you can reconfigure the Rsyslog tool in the appliance.

The format of each type of log message from a DLS virtual appliance is as follows:

• syslog messages are in the standard syslog format, with the fields in each message separated by a space:
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  timestamp hostname program-name message-text
          

• NLS service messages are formatted as JSON strings:
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  SEMANTIC:service-name: semantic-json-string
          

1. Use the hypervisor management console of the appliance to log in as the user dls_diagnostics to the VM that hosts the DLS virtual appliance.
2. Edit the file /etc/rsyslog.conf to update the address and port of the external syslog server.
3. Restart the Rsyslog tool.
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   # sudo -u root /etc/adminscripts/restart_rsyslog.sh
           

6.4. Setting the Retention Period of Events on a DLS Instance

A DLS instance records events related to administration of the instance and the serving of licenses from the instance to licensed clients. These events are displayed on the Events page of the instance. You can control the number of events that are displayed on this page by setting the retention period of events on a DLS instance. Any event older than the retention period is deleted from the instance.

1. Open a web browser and connect to the URL https://dls-vm-ip-address.

   dls-vm-ip-address

   The IP address or, if defined, the fully qualified domain name or the CNAME of the VM on which the DLS virtual appliance is installed.

   You can get the IP address from the management console of your hypervisor.

2. On the login page that opens, provide the user credentials for the DLS administrator user on the DLS virtual appliance and click LOGIN.
3. In the left navigation pane, click SETTINGS.
4. On the Service Instance Settings page that opens, expand the Basic Settings section and click the Events tab.
5. In the Events tab, set the retention time in days for each type of event, and click SAVE SETTINGS.

6.5. Specifying the Retention Period for Client Registrations

To prevent excessive consumption of memory in its database, a DLS instance periodically removes details about licensed clients that have been inactive for a specific period of time. An inactive client does not have any licenses checked out from a license server that is bound to the DLS instance. You can control how long a client must be inactive before its details are removed.

By default, how long a client must be inactive before its details are removed depends on whether the DLS instance supports non-persistent desktop pools.

1. Open the file /etc/dls/network/registered_origin_cleanup_config.properties for editing in a plain-text editor such as vi. If the file has not previously been modified, it contains the following text:
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   # Max value for InstantClone setups is 15 days, if a value greater than this is passed default value of 1 day will be used 
   #InstantClone=1
   # Max value for NonInstantClone setups is 60 days, if a value greater than this is passed default value of 30 days will be used 
   #NonInstantClone=30
           

2. Remove the comment character # from the property setting that applies to the DLS instance and set the property to the number of days that a client must be inactive before its details are removed. The property to set depends on whether the DLS instance supports non-persistent desktop pools.

   Non-Persistent Desktop Pools	Property
   Supported	InstantClone
   Not supported	NonInstantClone

   The following example specifies that, for a DLS instance that supports non-persistent desktop pools, the instance removes details about licensed clients that have been inactive for 10 days.
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   # Max value for InstantClone setups is 15 days, if a value greater than this is passed default value of 1 day will be used
   InstantClone=10 
   # Max value for NonInstantClone setups is 60 days, if a value greater than this is passed default value of 30 days will be used 
   #NonInstantClone=30
           

   Note:

   Do not remove the # character from the first or third lines, as they are comments.

3. Save your changes and quit the editor.

6.6. Gathering License Usage Statistics

You can use license usage statistics to estimate the number of licenses that you need to purchase. These statistics are available only from DLS instances. They are not available from CLS instances.

Usage statistics require event data and if no events are available, the statistics might be incorrect. To ensure that the statistics gathered are correct, set the retention period for events to 90 as explained in Setting the Retention Period of Events on a DLS Instance.

1. Open a web browser and connect to the URL https://dls-vm-ip-address.

   dls-vm-ip-address

   The IP address or, if defined, the fully qualified domain name or the CNAME of the VM on which the DLS virtual appliance is installed.

   You can get the IP address from the management console of your hypervisor.

2. On the login page that opens, provide the user credentials for the DLS administrator user on the DLS virtual appliance and click LOGIN.
3. In the left navigation pane of the NVIDIA Licensing dashboard, click METRICS.
4. In the Metrics page that opens, specify the details of the statistics that you want to gather and click GET LICENSE UTILIZATION.
   1. Under Date range (up to 92 days), use the calendar widgets to set the start date and end date of the period during which you want to gather license usage statistics.
   2. From the Metric drop-down list, select the statistic that you want to gather.
   3. Under Features, select the licensed products for which you want to gather usage statistics.
   4. To exclude licenses in use that were checked out before the start date of the period during which you want to gather license usage statistics, select the Exclude prior leases option.

   The statistics that you requested are added to the table at the bottom of the Metrics page.

5. Optional: If you want a report in CSV format, create the report as follows:
   1. At the top right of the table at the bottom of the Metrics page, click the Export data icon.
   2. In the Export Data pop-up window that opens, specify the name of the CSV file to be exported and click EXPORT.

   A .csv file is saved to your default downloads folder.

6.7. Configuring Email Alerts for Licensing Events

To avoid disruption to your services, you can configure email alerts for licensing events that relate to the expiration or exhaustion of NLS resources. These alerts remind you to renew the affected resources before they expire or are exhausted. By default, NLS does not send any alerts. If you want NLS to send alerts, you must create them. After creating an alert, you can edit it and, if you want NLS to stop sending it, disable it.

You can configure email alerts for the NVIDIA Licensing Portal and for a DLS appliance. The types of licensing events for which you can configure email alerts depend on the scope of the alerts.

For each type of event, you can specify who should receive email alerts and other properties specific to each type of event that determine the criteria for sending the alerts. However, the content of the alert for each event type is preset and cannot be changed.
If you are configuring email alerts for a DLS appliance, ensure that the DLS appliance can reach a Simple Mail Transfer Protocol (SMTP) server for sending the alerts.

1. Navigate to the part of the NVIDIA Licensing application for configuring email alerts for the scope that you are interested in.

   Scope

   Steps

   DLS appliance

   If you are not already logged in, log in to the NVIDIA Licensing application on the VM or container in which the DLS appliance is installed or deployed. In the left navigation pane, click SETTINGS. On the DLS Instance Settings page that opens, expand the Email Alerts section. If no SMTP server has been specified for the DLS appliance, you will be prompted to provide details of the SMTP server for sending alerts from the appliance.

2. If prompted, provide details of the SMTP server for sending alerts from this DLS appliance and click CONFIGURE SMTP.

   You can also change details that were provided previously by following the Update SMTP configuration link.

   Host

   The fully qualified domain name, for example, smtp.example.com, or the IP address of the SMTP server for sending alerts from the appliance.

   Username

   The name of the user that the DLS appliance will log in as to the SMTP server to send alerts from the appliance. Username must identify a valid user account on the SMTP server.

   Password

   The user's password for logging in to the SMTP server.

3. Create or edit the alert that you are interested in.
   • To create an alert, click Create.
   • To edit an alert, click Edit.
4. In the pop-up window that opens, specify who should receive email alerts and other properties specific to each type of event that determine the criteria for sending the alerts CREATE ALERT or EDIT ALERT.

   Event Type	Steps
   NVIDIA Licensing Portal only: API Key Expiration	Editing an alert only: If you want to enable or disable the alert, select or deselect the Enabled option. Note: When you create an alert, the alert is enabled automatically. For each intended recipient of the alert, type the recipient's email address into the text-entry field and click the plus-sign (+) next to the field. Ensure that the email address corresponds to a registered contact in your organization. The address is added to the list of addresses in the E-mail addresses to notify field. In the Number of days prior to expiration to receive notification text-entry field, type the number of days before the API key expires that NLS should send an alert.
   NVIDIA Licensing Portal only: Feature Expiration	Editing an alert only: If you want to enable or disable the alert, select or deselect the Enabled option. Note: When you create an alert, the alert is enabled automatically. For each intended recipient of the alert, type the recipient's email address into the text-entry field and click the plus-sign (+) next to the field. Ensure that the email address corresponds to a registered contact in your organization. The address is added to the list of addresses in the E-mail addresses to notify field. In the Number of days prior to expiration to receive notification text-entry field, type the number of days before the license expires that NLS should send an alert.
   Lease Consumption	Editing an alert only: If you want to enable or disable the alert, select or deselect the Enabled option. Note: When you create an alert, the alert is enabled automatically. For each intended recipient of the alert, type the recipient's email address into the text-entry field and click the plus-sign (+) next to the field. Ensure that the email address corresponds to a registered contact in your organization. The address is added to the list of addresses in the E-mail addresses to notify field. In the Notify when feature lease consumption exceeds percentage text-entry field, specify the percentage of available licenses consumed for a specific product that must be exceeded for NLS to send an alert. In the Ignore additional alerts occurring within the next hours text-entry field, specify the number of hours after an alert is sent during which any further consumption of available licenses is ignored.

When you receive an alert, renew the affected resources before they expire or are exhausted. The affected resources and how to renew them depend on the type of the licensing event that caused NLS to send the alert:

• API key expiration: Renew the API key.
• License expiration: Renew your existing entitlements or purchase new entitlements.
• License consumption: If additional licenses are available, add more licenses to the license pool from which the licenses are consumed. Otherwise, plan to purchase more licenses and add the purchase licenses to the license pool.

6.8. Hiding Organization and Virtual Group Information on a DLS Instance

You can use REST APIs to hide the organization and virtual group to which the licenses served by a DLS instance belong.

1. Submit an HTTP POST request with basic authentication to log in to the DLS appliance that hosts the DLS instance as the DLS administrator user.
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   POST https://host:port/auth/v1/login
           

   host

   The IP address or fully qualified domain name of the VM or container that is hosting the DLS appliance.

   port

   The port on which the VM or container that is hosting the DLS appliance listens for HTTPS requests.

   In the request, pass the user name and password of the DLS administrator user. The default user name is dls_admin.

   The following example uses the curl command to log in to the DLS appliance dls.example.com on port 8081 as the user dls_admin with the password changeit.

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   curl -k --location --request POST 'https://dls.example.com:8081/auth/v1/login' \
   --header 'Content-Type: application/json' \
   --data-raw '{
       "username": "dls_admin"
       "password": "changeit"}'
           

   The response sets the authorization token in the LIC-TOKEN cookie and includes the token in the response body.

2. Submit an HTTP PUT request to hide the organization and virtual group on the DLS instance.
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   PUT https://host/service_instance_manager/v1/config/hide-name-on-ui
           

   host

   The IP address or fully qualified domain name of the VM or container that is hosting the DLS appliance.

   If the tool that you use to submit the request supports cookies, you can submit the request without the authorization token. Otherwise, you must pass the authorization token that was returned in the previous step in the header as a bearer token.

   The following example uses the curl command to hide the organization and virtual group on the DLS instance on the appliance dls.example.com. For clarity, the example shows only the placeholder token.

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   curl -k --location --request PUT \
   ' https://dls.example.com/service_instance_manager/v1/config/hide-name-on-ui' \
   --header 'Authorization: Bearer token'
           

If the organization and virtual group are hidden after the DLS administrator user has logged in to the DLS appliance, the DLS administrator user must reload the web-based management interface to see the changes. To show the organization and virtual group again, submit a PUT request on the REST endpoint for hiding the organization and virtual group with the query parameter hide=false.

            

            
PUT https://host/service_instance_manager/v1/config/hide-name-on-ui?hide=false
        

6.9. Setting the Maximum Size of the PostgreSQL Database Volume

To limit disk usage by a container-based DLS appliance, you can set the maximum size of the PostgreSQL database volume postgres-data. The default maximum size is 10 GB.

1. Log in to the DLS appliance for which you want to set the maximum size of the PostgreSQL database volume.
2. In the left navigation pane of the NVIDIA Licensing dashboard, click SETTINGS.
3. On the Service Instance Settings page that opens, expand the Basic Settings section and click the Events tab.
4. In the Purge Settings section, under Container Volume Disk Allocation in GB, type the maximum size of the PostgreSQL database volume in GB and click SAVE SETTINGS.

6.10. Troubleshooting a DLS Instance

To facilitate troubleshooting, the DLS provides access to log files, event records, and the status of a DLS instance's internal services. If the DLS instance's internal services have failed, you can restart them from the NVIDIA Licensing application on the DLS virtaual appliance.

6.10.1. Log File Locations and Types for a DLS Virtual Appliance

The log files for a DLS virtual appliance contain diagnostic information to help with troubleshooting. The DLS administrator user can access these log files through the hypervisor console or secure shell (SSH).

The log files for a DLS virtual appliance are in the locations in the following table.

Files in the following standard Linux directories contain log messages from the operating system:

• /tmp
• /var/log
• /var/tmp

6.10.2. Storing Log Files for a DLS Virtual Appliance on a Network File Share

Because the amount of disk space available in a DLS virtual appliance might be limited, the DLS virtual appliance does not retain all log messages generated during the lifetime of a DLS virtual appliance. If you want to retain all log messages, you can configure the virtual appliance to store log files for a DLS virtual appliance on a network file share.

If a virtual appliance is configured to store log files for a DLS virtual appliance on a network file share, it periodically aggregates the log files and moves them from the local disk of the DLS virtual appliance to the share.

Ensure that the following prerequisites are met:

• The network file share has been created on a network attached storage server that is accessible from the DLS virtual appliance.
• The DLS administrator user on the DLS virtual appliance is granted full access to the network file share.

1. Log in to the DLS virtual appliance.
2. In the left navigation pane, click SETTINGS.
3. On the Service Instance Settings page that opens, expand the Log Archival section.
4. In the Log Archival section, provide the details of the network file share and click MOUNT.
   1. From the Platform drop-down list, select the OS that corresponds to the type of the share on the network attached storage server.
      • For a share that corresponds to the Windows OS, such as a CIFS share, select Windows.
      • For a share that corresponds to the UNIX OS, such as an NFS share, select Unix.
   2. In the Network Share Path text-entry field, type the path to the share on the network attached storage server in the following format:
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      //nas-server/file-path
              

      nas-server

      The IP address or fully qualified domain name of the network attached storage server on which the share has been created.

      file-path

      The full path to the share from the root of the file system on the network attached storage server. In the path, use the forward slash as the file separator, even if you selected Windows from the Platform drop-down list.

   3. If you selected Windows from the Platform drop-down list , provide the user name and password for the user on the network attached storage server that will access the share.

The network file share is mounted at /var/log/licensing on the DLS virtual appliance. This mount point is preset in the DLS virtual appliance and cannot be changed.

6.10.3. Exporting and Importing Event Records from a DLS Instance

To help NVIDIA Enterprise Support personnel troubleshoot issues with a DLS instance, you can export event records from the DLS instance and import them into the NVIDIA Licensing Portal.

1. Log in to the DLS virtual appliance that hosts the DLS instance.
2. In the left navigation pane of the NVIDIA Licensing dashboard, click MAINTENANCE.
3. Optional: Filter the events that you want to export.
   1. On the Maintenance page that opens, set the Show advanced filters option.
   2. Use the calendar widget that is added to the page to set the range of dates for which you want to export event records.
   3. Select the categories of event that you want to export.
4. On the Maintenance page, click EXPORT EVENTS. An event log file that is named on-premises_export_mm-dd-yyyy-hh-mm-ss.log is saved to your downloads folder.
5. In the NVIDIA Licensing Portal, navigate to the organization or virtual group to which the DLS instance belongs.
   1. If you are not already logged in, log in to the NVIDIA Enterprise Application Hub and click NVIDIA LICENSING PORTAL to go to the NVIDIA Licensing Portal.
   2. Optional: If your assigned roles give you access to multiple virtual groups, select the virtual group to which the DLS instance belongs from the list of virtual groups at the top right of the page.
6. In the left navigation pane of the NVIDIA Licensing Portal dashboard, click DASHBOARD.
7. On the Dashboard page that opens, under DLS data synchronization, click Import.
8. In the file browser that opens, navigate to the folder that contains the event log file that is named on-premises_export_mm-dd-yyyy-hh-mm-ss.log that you downloaded and select the file.
9. Optional: For each other event file that you want to import, click SELECT ANOTHER FILE, and navigate to and select the file.
10. After selecting all the files that you want to import, click UPLOAD EVENTS.

6.10.4. Restarting a DLS Instance's Internal Services

If a DLS instance has failed because its internal services are no longer active, you can restart the inactive services to recover from the failure.

1. Log in to the DLS virtual appliance that hosts the DLS instance. If the DLS instance is a node in an HA cluster, you must log in to the DLS virtual appliance that hosts the specific node. You cannot restart the internal services of the secondary node from the primary node or restart the internal services of the primary node from the secondary node.
2. In the left navigation pane, click SERVICE INSTANCE.
3. On the Service Instance page that opens, under Node Health, determine whether the status of any of the DLS instance's internal services is inactive. Status information is provided for the DLS instance's critical services and other services.
4. If any set of services in not active, click RESTART for that set of services.

6.10.5. Recovering from an Incorrect DLS Name or Address in a Client Configuration Token

A client configuration token uses an IP address or fully qualified domain name to identify the DLS instance from which to serve a license to a client. If the IP address or fully qualified domain name in the client configuration token is incorrect, licensing requests from all clients that are configured with the token fail to be fulfilled.

When this issue occurs, an error message similar to the following example is written to the licensing event log on the client.

            

            
Failed to acquire license from 192.0.2.206
(Info: NVIDIA RTX Virtual Workstation - 
Error: Could not communicate to server, timeout has been reached)
        

To determine whether an incorrect DLS name or address caused a licensing request to fail, compare the IP address or fully qualified domain name in the error message with the same information on the Service Instance Details page. If the information in both places does not match, the failure of the licensing request was caused by an incorrect DLS name or address.

Recover from this issue in one of the following ways:

• Replace the client configuration token with a new token in which the IP address or fully qualified domain name is correct.
  1. Generate a new client configuration token as explained in Generating a Client Configuration Token for a DLS Instance to ensure that the IP address or fully qualified domain name in the token is correct.
  2. Configure each licensed client with the new token as explained in Configuring a Licensed Client with a Networked License.
• Change the IP address or fully qualified domain name of the VM on which the DLS instance is hosted to match the IP address or fully qualified domain name in the client configuration token.

6.10.6. Recovering from an HA Configuration Failure in an IPv6 Network

An attempt to create an HA cluster of VM-based DLS instances in which the VMs are communicating over IPv6 might fail. The failure occurs because the DLS virtual appliance that is hosting one of the instances cannot ping the DLS virtual appliance that is hosting the other instance. To recover from this failure, use the shell script that each DLS virtual appliance provides specifically for this purpose.

Perform this task for each VM on which the DLS virtual appliance for each DLS instance in the cluster is installed.

1. Use the hypervisor management console of the appliance to log in as the user dls_system to the VM that hosts the DLS virtual appliance. You don't need to provide a password to log in as the dls_system user.
2. As root, run the /etc/dls/scripts/support_only_ipv6.sh script.
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   $ sudo -u root /etc/dls/scripts/support_only_ipv6.sh
           

3. Repeat the attempt to create the cluster by following the instructions in Creating an HA Cluster of DLS Instances.

After creating a license server on the NVIDIA Licensing Portal, you can add licenses to and remove licenses from the server, add new licensed products to and remove licensed products from the server, and delete the server when you no longer require it.

7.1. Where to Perform Tasks for Managing a License Server

Where to perform the tasks for managing a license server depends on the task and on the type of service instance on which the license server is installed.

7.2. Managing Licenses and Licensed Products on a License Server

Manage the licenses on a license server to add or remove individual licenses for a specific product on the license server. Manage the licensed products on a license server if you need to add or remove licensed products from a license server. When you add a licensed product to a license server, only one license for the product is allocated. When a licensed product is removed from a license server, all licenses that were allocated for the product are returned to the entitlement.

Ensure that any licensed products that you want to remove from a license server are not in a license pool. If necessary, return licensed products from a pool to the license server as explained in Managing Licenses and Licensed Products in a License Pool.
Where to perform this task depends on whether you are adding or removing licenses.

• If you are adding licenses, perform this task on the NVIDIA Licensing Portal irrespective on the type of service instance on which the license server is installed.
• If you are removing licenses, where to perform this task depends on the type of service instance on which the license server is installed:
  • On a CLS instance, perform this task on the NVIDIA Licensing Portal.
  • On a DLS instance, perform this task on the NVIDIA Licensing application on the virtual appliance that hosts the DLS instance.

1. Navigate to the License Server Details page of the license server to which you want to add or from which you want to remove licenses. For instructions, see Navigating to the License Server Details Page for a License Server.
2. In the License Server Details page that opens, disable the license server by clicking DISABLE SERVER and, when prompted, confirm that you want to disable the license server. When the license server is disabled, it cannot serve licenses to licensed clients.
3. From the ACTIONS menu, choose Manage Features. The Manage Server Features pop-up window opens with the Modify existing tab active.

In the Manage Server Features pop-up window, you specify all the licenses and licensed products that you want to add or remove before confirming your changes by clicking UPDATE SERVER FEATURES.

1. For each licensed product for which you want to add or remove licenses, specify the number of licenses for the product that you want to remain on the server after updating licenses. Use the text-entry field in the ALLOCATED column for this purpose.

   • To add licenses to the server, enter a number greater than the number already allocated to the server, but less than or equal to the total number of licenses available.

     If you enter a number greater than the total number of licenses available, an error occurs.

   • To remove licenses from the server, enter a number less than the number already allocated to the server but greater than 0.

     For example, to remove 4 licenses from a server to which 10 licenses are allocated, leaving 6 licenses allocated to the server, enter 6 in the Licenses field.

     If you enter 0, an error occurs. You must leave at least one license on the license server. To remove all licenses for a product from the license server, remove the product from the server by clicking the trash can icon.

   The number of licenses on the server remains unchanged until you confirm your changes by clicking UPDATE SERVER FEATURES.

2. Remove each licensed product that you no longer want on the server by clicking the trash can icon next to the licensed product. The licensed product is removed from the list of licensed products on the Modify existing tab. However, the licensed product remains on the server until you confirm the change by clicking UPDATE SERVER FEATURES.
3. Add any licensed products that you want to add to the license server.
   1. Click the Add new tab.
   2. In the list of licensed products on the Add new tab, select the licensed products that you want to add.
4. After adding or removing all the licenses and licensed products that you are interested in, preview your changes by clicking Preview changes.
5. After previewing your changes, click UPDATE SERVER FEATURES.
6. On the Overview tab of the License Server Details page, enable the license server by clicking ENABLE SERVER and, when prompted, confirm that you want to enable the license server. The license server can now serve licenses to licensed clients.

If the license server is installed on a CLS instance, no further action is required. The license server and the NVIDIA Licensing Portal are automatically updated with your changes.

If the license server is installed on a DLS instance, you must ensure that the licenses on your license server and on the NVIDIA Licensing Portal are consistent.

• If you added licenses, download and install the updated license server to ensure that the correct licenses are available on the DLS instance. For detailed instructions, see Installing a License Server on a DLS Instance. Installing the updated license server does not affect the distribution of existing licenses among license pools.
• If you removed licenses, return the licenses to the entitlement on the NVIDIA Licensing Portal. For detailed instructions, see Returning Licenses from a License Server on a DLS Instance to the NVIDIA Licensing Portal.

7.3. Returning Licenses from a License Server on a DLS Instance to the NVIDIA Licensing Portal

After removing individual licenses or licensed products from a license server installed on a DLS instance, you must return them to the entitlement on the NVIDIA Licensing Portal. Returning them ensures that the licenses and products on your license server and on the NVIDIA Licensing Portal are consistent. The returned licenses and products are then available for use by other license servers.

1. If you are not already logged in, log in to the NVIDIA Licensing application at the IP address of the VM on which the DLS virtual appliance is installed.
2. In the left navigation pane of the NVIDIA Licensing dashboard, click MAINTENANCE.
3. On the Maintenance page that opens, click Export Feature Return.
   Note:

   The Export Feature Return button is active only if individual licenses or licensed products have been removed from the license server.

   A license return file named on-premises_feature_return_mm-dd-yyyy-hh-mm-ss.bin is downloaded.
4. In the NVIDIA Licensing Portal, navigate to the organization or virtual group for which the license server was created.
   1. If you are not already logged in, log in to the NVIDIA Enterprise Application Hub and click NVIDIA LICENSING PORTAL to go to the NVIDIA Licensing Portal.
   2. Optional: If your assigned roles give you access to multiple virtual groups, select the virtual group for which the license server was created from the list of virtual groups at the top right of the page.
5. In the list of license servers on the NVIDIA Licensing Portal dashboard, select the license server from which you want to return licenses or licensed products.
6. In the License Server Details page that opens, from the Actions menu, choose Return Features.
7. In the Return Features pop-up window that opens, click SELECT FEATURE RETURN FILE.
8. In the file browser that opens, navigate to the folder that contains the license return file named on-premises_feature_return_mm-dd-yyyy-hh-mm-ss.bin that you downloaded and select the file.
9. Back in the Return Features pop-up window, click RETURN FEATURES. The returned licenses and license products are added to the entitlements on the NVIDIA Licensing Portal.

7.4. Moving a License Server to Another Virtual Group

1. In the NVIDIA Licensing Portal, navigate to the organization or virtual group to which the license server belongs.
   1. If you are not already logged in, log in to the NVIDIA Enterprise Application Hub and click NVIDIA LICENSING PORTAL to go to the NVIDIA Licensing Portal.
   2. Optional: If your assigned roles give you access to multiple virtual groups, click View settings at the top right of the page and in the My Info window that opens, select the virtual group from the Virtual Group drop-down list, and close the My Info window.
2. In the left navigation pane of the NVIDIA Licensing Portal dashboard, expand LICENSE SERVERS and click LIST SERVERS.
3. In the list of license servers on the License Servers page that opens, from the Actions menu for the license server, choose Move server. The Move License Server pop-up window opens and displays which licensed products can be moved and which licensed products cannot be moved because they are bound to a DLS instance or because licenses are checked out.
4. In the Move License Server pop-up window, select the virtual group to which you want to move the license server and click MOVE SERVER. The licensed products on the license server that can be moved are moved to the selected virtual group.