We have a Hyper-V R2 cluster with DPM 2010 doing the VM backups at the host level. All VMs are backing up and restoring fine except two. On those VMs the following error occurs: (I changed the VM and server names)
Description: The back up to tape job failed for the following reason: (ID 3311)
There are no significant events where he tells me to look, just the same VSS events as in a successful backup.
These 2 VMs do have an extra VHD with over 200GB attached. The second one was backing up fine until recently. Most VMs have dynamically expanding disks. These 2 have them.
Error details below.
| \Backup Using Child Partition Snapshot\*VM1 (*VM1*.Cluster.Domain) | DPM encountered a retryable VSS error. (ID 30112 Details: VssError:The writer experienced a transient error. If the backup process is retried, the error may not reoccur. (0x800423F3)) | Check the Application Event Log on Clusternode2.domain for the cause of the failure. Fix the cause and retry the operation. For more information on this error, go to http://go.microsoft.com/fwlink/?LinkId=132612. |
| \Backup Using Child Partition Snapshot\*VM2* (VM2.Cluster.domain) | DPM encountered a retryable VSS error. (ID 30112 Details: VssError:The writer experienced a transient error. If the backup process is retried, the error may not reoccur. (0x800423F3)) | Check the Application Event Log on Clusternode1.Domain for the cause of the failure. Fix the cause and retry the operation. |
