HPE Synergy 813562-001 Maintenance And Service Manual page 26

• A quorum configuration alert appears on the Deployment Appliances screen in the Image Streamer user interface and
persists for more than 30 minutes.
• Compute modules shut down immediately.
NOTE: Compute modules running Linux might shut down immediately. The compute modules running VMware ESXi might
continue functioning from memory and do not access the OS volume for a long time. Because there is no alert to notify you
that the OS volumes are inaccessible, you might not see this symptom for compute modules running VMware ESXi.
• New OS deployments using Image Streamer fail and display the error: Unable to deploy OS volume.
• Any further attempt to remove or insert an appliance fails.
Cause
The existing appliance is not able to reach the newly inserted appliance due to technical issues such as network connectivity.
This might cause the storage to lose quorum. If the storage loses quorum, the corresponding OS volumes become inaccessible
and the compute modules using these OS volumes are impacted.
Action
Contact your authorized support representative after creating a support dump from HPE OneView and Image Streamer
appliances.
Appliance removal or reinsertion might fail because the appliance has no OS volumes
Symptom
When you remove an appliance after deleting all Image Streamer based server profiles, the appliance removal operation might
not fully succeed. This failure prevents the cluster formation process after you reinsert the appliance.
When you insert an appliance after deleting all Image Streamer based server profiles, it might result in a condition that causes
future appliance removals to fail. Also, any new deployments using Image Streamer might fail.
Removal and replacement procedures
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