Fix: UFM Service Not Starting on UFM Appliance UFM-MUA9502H
Note: This appliance UFM-MUA9502H is EOL as of 2022.Pre-requisites
Ensure the following conditions are met before attempting to start the UFM service:
Ensure the license is attached. 
Verify bond0 is configured with eth0 and eth1.
- Command: show interface bond0
Set the management interface on eth0 or eth1.
Commands:
config terminal
ufm mgmt-interface eth0
Ensure eth0/eth1 is up.
Command:
show interfaces
Starting UFM Service
Once the prerequisites are met, attempt to start the UFM service:
Command:
ufm start
Troubleshooting: SM Already Running
If the service does not start and you see a message indicating that the Subnet Manager (SM) is already running:
Stop SM on the connected InfiniBand switch.
Run the following command to safely stop the SM running on UFM:
ufm safe-stop
Retry starting UFM:
ufm start
Check the status:
show ufm status
Issue: UFM Shows as Stopped but Other Services are Running
If you see the message "ufm: stopped but other services are running", follow the steps below to update the UFM appliance firmware.
Fix: Update UFM Appliance Firmware to 4.11.1.1
Firmware Version: image-ufm_appliance-x86_64-UFMAPL_4.11.1.1_UFM_6.12.1.1-20230209-111043.img
Downloading the New Firmware
Go to the NVIDIA Networking Portal (NPN).
Click the "Get Help" tab > Click "Enterprise Support" button.
You will be redirected to the Enterprise Support Portal.
Click the "Downloads" tab.
Select "Software" > "UFM Appliance".
You will be redirected to the Licensing Portal.
Click the "Software Downloads" tab.
Search for "UFM Appliance".
Select the version mentioned above and download the firmware.
Updating the UFM Appliance

Log in to the Management Portal of UFM.
Upload the downloaded .img
file.
Initiate the update process and reboot the appliance.

Once the update is complete, the UFM service issue should be resolved. Verify that the service is running by executing:
show ufm status

Conclusion: Following the above steps should resolve the issue of the UFM service not starting on the UFM Appliance UFM-MUA9502H. If the problem persists, consider reaching out to enterprise support for further assistance.
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