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Azure scratch VHDX corruption? RRS feed

  • Question

  • Hello

    DPM 2016 with MBS, Server 2016, MARS Agent 9077 - Protection of a Server 2012 R2 volume with dedup enabled.

    My online recovery points have suddently stopped working with the following error:

    Online recovery point creation jobs for Volume J:\ on XXXXXX have failed 1 times. (ID 3188)
    Unable to find changes in a file. This could be due to various reasons. Please retry the operation. (ID 32504)

    Upon lots of searching and troubleshooting I have dug as deep as mounting the Azure scratch VHDX and upon running chkdsk recieve the following:

    Stage 1: Examining basic file system structure ...
    Attribute record (80, "") from file record segment 1E48
    is corrupt.
    Attribute record (80, "") from file record segment 4CCB

    <snip>

    Errors found.  CHKDSK cannot continue in read-only mode.

    I am unable to run CHKDSK with the /F as the volume is write protected, the VHDX IS NOT mounted in read-only mode.

    Any advice on what to do next please?

    Thanks

    Wednesday, August 9, 2017 3:35 AM

All replies

  • I have disabled deduplication on the protected volume (from the source server) and run an unoptimization job. The protection group has synced and I have run a consistency check. It seems the local replica's are working fine but the online recovery points are still failing with the same errors.

    I can see lots of errors in the CBEngineCurr.errlog relating to the volumes relating to this data and the ID32504 error.

    Any help appreciated.

    Thursday, August 10, 2017 2:00 AM