Running UFM Server Software

NVIDIA UFM Enterprise User Manual v6.15.2

  • Perform initial configuration.

  • Ensure that all ports used by the UFM server for internal and external communication are open and available. For the list of ports, see Used Ports.
    You can run the UFM server software in the following modes:

  • Management

  • Monitoring

  • High Availability

  • High Availability with failover to an external SM

Warning

In Management or High Availability mode, ensure that all Subnet Managers in the fabric are disabled before running UFM. Any remaining active Subnet Managers will prevent UFM from running.

After installing, run the UFM Server by invoking:

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systemctl start ufm-enterprise.service

Warning

/etc/init.d/ufmd - Available for backward compatibility.

Log files are located under /opt/ufm/files/log (the links to log files are in /opt/ufm/log).

On the Master server, run the UFM Server by invoking:

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ufm_ha_cluster start

You can specify additional command options for the ufmha service.

ufm_ha_cluster Command Options

Command

Description

start

Starts UFM HA cluster.

stop

Stops UFM HA cluster.

failover

Initiates failover (change mastership from local server to remote server).

takeover

Initiates takeover (change mastership from remote server to local server).

status

Shows current HA cluster status.

cleanup

Cleans the HA configurations on this node.

help

Displays help text.

Run UFM in Monitoring mode while running concurrent instances of Subnet Manager on NVIDIA switches. Monitoring and event management capabilities are enabled in this mode. UFM non-monitoring features such as provisioning and performance optimization are disabled in this mode.

The following table describes whether features are enabled or disabled in Monitoring mode.

Features Enabled/Disabled in Monitoring Mode

Feature

Enabled/Disabled in Monitoring Mode

Fabric Discovery

Enabled

Topology Map

Enabled

Fabric Dashboard

Enabled

Fabric Monitoring

Enabled

Alerts and Thresholds (inc. SNMP traps)

Enabled

Fabric Logical Model

Enabled

Subnet Manager and plugins

Disabled

Subnet Manager Configuration

Disabled

Automatic Fabric Partitioning

Disabled

Central Device Management

Disabled

Quality of Service

Disabled

Failover (High Availability mode)

Disabled

Traffic Aware Routing Algorithm

Disabled

Device Management

Disabled

Integration with Schedulers

Disabled

Unhealthy Ports

Disabled

In Monitoring mode, UFM periodically discovers the fabric and updates the topology maps and database.

For Monitoring mode, connect UFM to the fabric using port ib0 only. The fabric must have a subnet manager (SM) running on it (on another UFM, HBSM, or switch SM).

Warning

When UFM is running in Monitoring mode, the internal OpenSM is not sensitive to changes in OpenSM configuration (opensm.conf).

Warning

When running in Monitoring mode, the following parameters are automatically

overwritten in the /opt/ufm/files/conf/opensm/opensm_mon.conf file on startup:

  • event_plugin_name osmufmpi

  • event_plugin_options --vendinfo -m 0

Any other configuration is not valid for Monitoring mode.

  1. In the /opt/ufm/conf/gv.cfg configuration file:

  • Set monitoring_mode to yes

  • If required, change mon_mode_discovery_period (the default is 60 seconds)

  • Set reset_mode to no_reset

    We recommend this setting when running multiple instances of UFM so that each port counter is not reset by different UFM instances. For more information, see Resetting Physical Port Counters.

2. Restart the UFM Server.

The Running mode is set to Monitoring, and the frequency of fabric discovery is updated according to the setting of mon_mode_discovery_period.

Note that a monitor icon will appear at the top of the navigation bar indicating that monitoring mode is enabled:

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By default, UFM is configured to work with the secured HTTPS protocol.

After installation, the user can change the the Web Server configuration to communicate in secure (HTTPS) or non-secure (HTTP) protocol.

For changing the communication protocol, use the following parameter under the [Server] section in the gv.cfg file:

  • ws_protocol = https

Changes will take effect after restarting UFM.

For further information, please refer to the Launching a UFM Web UI Session available in the UFM Quick Start Guide.

UFM uses Apache as the main Web Server for client external access. The UFM uses an internal web server process to where the Apache forwards the incoming requests.

By default, the internal web server listens to the local host interface (127.0.0.1) on port 8000.

For changing the listening local interface or port, use the following parameters under the [Server] section in the gv.cfg file:

  • rest_interface = 127.0.0.1

  • rest_port = 8000

Changes will take effect after restarting UFM.

UFM User Authentication is based on standard Apache User Authentication. Each Web Service client application must authenticate against the UFM server to gain access to the system.

The UFM software comes with one predefined user:

  • Username: admin

  • Password: 123456

You can add, delete, or update users via User Management Tab.

The UFM Authentication Server, a centralized HTTP server, is responsible for managing various authentication methods supported by UFM.

Configurations of the UFM Authentication Server

The UFM Authentication Server is designed to be configurable and is initially turned off by default. This means that existing authentication methods are managed either by the native Apache functionality (such as Basic, Session, and Client Certificate authentication) or at the UFM level (including Token-Based authentication and Proxy Authentication).

Enabling the UFM Authentication Server provides a centralized service that oversees all supported authentication methods within a single service, consolidating them under a unified authentication API.

Apache utilizes the authentication server’s APIs to determine a user’s authentication status.

To enable the UFM Authentication Server, refer to Enabling UFM Authentication Server.

All activities of the UFM Authentication Server are logged in the authentication_service.log file, located at /opt/ufm/files/log.

Microsoft Azure Authentication is a service provided by Microsoft Azure, the cloud computing platform of Microsoft. It is designed to provide secure access control and authentication for applications and services hosted on Azure.

UFM supports Authentication using Azure Active Directory, and to do so, you need to follow the following steps:

Register UFM in Azure AD Portal

To log in via Azure, UFM must be registered in the Azure portal using the following steps:

  1. Log in to Azure Portal, then click “Azure Active Directory” in the side menu.

  2. If you have access to more than one tenant, select your account in the upper right. Set your session to the Azure AD tenant you wish to use.

  3. Under “Manage” in the side menu, click App Registrations > New Registration.

    image2023-7-26_7-16-15-version-1-modificationdate-1704380204577-api-v2.png

  4. Provide the application details:

    1. Name: Enter a descriptive name.

    2. Supported account types: Account types that are allowed to login and use the registered application.

    3. Redirect URL: select the app type Web, and Add the following redirect URL https:///auth/login

      azureauth2-version-1-modificationdate-1704380203393-api-v2.png

      Then, click Register. The app’s Overview page opens.

  5. Under Manage in the side menu, click Certificates & Secrets > New client secret.

    azureauth3-version-1-modificationdate-1704380203037-api-v2.png

    Provide a description for the client secret and set an expiration time, then click “Add.”

  6. Copy the client secret key value which will be needed to configure the UFM with Azure AD (Please note that the value of the generated secret will be hidden and will not be able to be copied/read after you leave the page.

    Under “Manage” in the side menu, click App roles > Create app role.

    azureauth4-version-1-modificationdate-1704380202603-api-v2.png

  7. Provide the role details. Please note that the role value must be a valid UFM role; otherwise, the login will fail.

    azureauth5-version-1-modificationdate-1704380202157-api-v2.png

  8. Assign the created role to the user. Follow the below steps:

    azureauth6-version-1-modificationdate-1704380201733-api-v2.png

    image2023-7-26_7-28-25-version-1-modificationdate-1704380205427-api-v2.png

    image2023-7-26_7-27-55-version-1-modificationdate-1704380205000-api-v2.png

    azureauth9-version-1-modificationdate-1704380200600-api-v2.png

  9. Click on “Overview” in the side menu to view the application information, such as tenant ID, client ID, and other details.

Enable Azure Authentication From UFM

Azure authentication is disabled by default. To enable it, please refer to Enabling Azure AD Authentication.

Azure Authentication Login Page

After enabling and configuring Azure AD authentication, an additional button will appear on the primary UFM login page labeled ‘Sign In with Microsoft,’ which will leads to the main Microsoft sign-in page:

MSFT-version-1-modificationdate-1704380193500-api-v2.png


UFM license is subscription-based featuring the following subscription options:

  • 1-year subscription

  • 3-year subscription

  • 5-year subscription

  • Evaluation 30-day trial license

Warning

UFM will continue to support old license types, but they are no longer available to obtain.

2 months before the expiration of your subscription license, UFM will warn you that your license will expire soon. After the subscription expires, UFM will continue to work with the expired license for two months beyond its expiration.

During this extra two-month period, UFM will generate a critical alarm indicating that the UFM license has expired and that you need to renew your subscription. Failing to do so within that 2-month period activates UFM Limited Mode. Limited mode blocks all REST APIs and access to the UFM web UI.

UFM enables functionality based on the license that was purchased and installed. This license determines the functionality and the maximum allowed number of nodes in the fabric.

To renew your UFM subscription, purchase a new license and install the new license file by downloading the license file to a temp directory on the UFM master server and then copying the license file to /opt/ufm/files/licenses/ directory.

Warning

UFM may not detect new license files if downloaded directly to /opt/ufm/files/licenses. If UFM does not detect the new license file, a UFM restart may be required.

If several licenses are installed on the server (more than one license file exists under /opt/ufm/files/licenses/), UFM uses only the strongest license and takes into consideration the expiration date, and the managed device limits on it, regardless of any other licenses that may exist on the server.

For instructions on how to view your license, please refer to the UFM Quick Start Guide.

This functionality allows users to view the current status of main processes handled by the UFM.

  • To view the main UFM processes, run the script show_ufm_status.sh under the /opt/ufm/scripts.Example: /opt/ufm/scripts/show_ufm_status.sh

  • To view the UFM main and child processes, run the script show_ufm_status.sh with –e (extended_processes).
    Example: /opt/ufm/scripts/show_ufm_status.sh -e

UFM_STATUS1-version-1-modificationdate-1704380199727-api-v2.png

UFM_STATUS2-version-1-modificationdate-1704380200233-api-v2.png


© Copyright 2023, NVIDIA. Last updated on Jan 5, 2024.