IBM Support

Failure prepping block device or VM in error status after deploy.

Troubleshooting


Problem

Deploying a VM fails.
VM is in error status.
 
When deploying from powervc web console, you may see this error
Deploy of virtual machine vm-name on host hostname failed with exception: Build of instance vm-id aborted: Failure prepping block device.

Cause

Storage Firmware is being updated.

Diagnosing The Problem

Cinder logs may show the following error:
'CMMVC5772E The operation requested could not be performed because an update is in progress.\n'

Resolving The Problem

  1. Place the hosts assigned to storage controller in maintenance mode.
  2. Unmanage the storage controller being updated prior to the firmware update. This option has a longer recovery time, due to time it takes to re-manage the storage array.
  3. Consider upvoting this feature request for adding a maintenance mode for storage arrays: https://ideas.ibm.com/ideas/PVC-I-511

Document Location

Worldwide

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Document Information

Modified date:
24 March 2025

UID

ibm17228873