Challenge
The Windows Agent Backup job for a failover cluster node with a cluster shared volume displays the following notice:
Skipping recovery media collection: cluster contains CSV disks
Cause
To prevent CSV performance degradation, Veeam Backup & Replication will automatically skip recovery media collection. That process is skipped because, during the Collecting recovery media files stage of a Veeam Agent Backup, the WIMMount driver is used.
If the recovery media creation/collection process is forced to occur, the usage of the WIMMount driver causes CSVs owned by that failover cluster node to enter "Redirected Access" mode. When that happens, the System event log will list the following event:
Event 5125, FailoverClustering
Cluster Shared Volume 'Volume1' ('Cluster Disk 1') has identified one or more active filter drivers
on this device stack that could interfere with CSV operations. I/O access will be redirected to the
storage device over the network through another Cluster node. This may result in degraded
performance. Please contact the filter driver vendor to verify interoperability with Cluster Shared
Volumes.
Active filter drivers found:
WIMMount (HSM)
Solution
The skipping of recovery media collection for failover cluster nodes with cluster shared volumes is expected behavior.
If a bare-metal restore needs to be completed for a failover cluster node, Veeam Support suggests the use of recovery media that was created for a similar machine with the same OS version.
Remember, the backup of CSV (Cluster Shared Volumes) is not supported. Cluster disks used as CSV are automatically excluded from backup. The bare-metal restore of a failover cluster node will not restore the contents of the cluster shared volume.
More Information
Because the recovery media is not collected for failover cluster nodes with CSVs, attempting to create recovery media from the Veeam Backup & Replication console will fail.
Failed to create recovery media: Recovery files not found in backup
