Hyper-V Cluster Host, Disk and NTFS Warnings\Errors

We have 2 seperate Hyper-V Server 2008 R2 cluster sites. 1 with 3 hosts the other with 2. I will be using the site with only 2 hosts for examples.
On all hosts we are seeing occassionally Disk and NTFS warnings when backups are occuring. Backup product is Commvault Simpana 9. Logs dont go back far enough for when we had DPM 2010.
Disk warning example: EventID: 51, An error was detected on device \Device\Harddisk5\DR77 during a paging operation.
NTFS error example: EventID: 137, The default transaction resource manager on volume \\?\Volume{ac774445-0d2e-11df-84ae-bc1ce0b29743} encountered a non-retryable error and could not start. The data contains the error code.
My question is Should we be concerned, they dont appear to be affecting backups? Also how do we determine what Harddisk5 is, we only have 3 cluster volumes on this site?
Hope you can shed some light on this? Thanks Wes
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PowerToTheUsersConnect With a Mentor Commented:
We had similar problems with DPM, but they were solved by serializing the backups of VMs on the CSV as described in http://technet.microsoft.com/en-us/library/ff634192.aspx
Maybe there's a similar configuration for Simpana? I'm not familiar with that product...
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