DPM 2012 with SP1 - Windows Server 2012 R2 File Server with Deduplication Volumes Enabled Tape Backup

Hi,

We've been using DPM for many years and have now upgraded to DPM 2012 SP1 Rollup 7. We can happily backup our Windows Server 2012 R2 deduped data volumes and it works fine.

But, when we try to then do end of Month backup on to a Tape, it suddenly fails. The error message we get is :

"The Operation failed since DPM was unable to access the file/folder \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy33533\4876e0d9-0fbc-4b13-b8cd-a76a054e0eb3\Full\HappyDays\SmartDoc3.doc on  DPM01.domain.local. This could be due to the file/folder being corrupt or the file system on the volume being corrupt. (ID 2036 Details: The file or directory is corrupted and unreadable (0x80070570))"

I can confirm that there are no errors on the file system or file corruption as reported by Chkdsk and also as we can open/write to the same files both, from original disk location and DPM disk backup.

Yet, we can backup the same source files that it complains are corrupt if we disable data de-duplication on that volume?

Anyone come across this issue or can help with suggestion?

Kind regards,

Luthfur

October 3rd, 2014 2:56pm

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