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Druva Documentation

Hyper-V VM restore fails with error HYPERV11

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Problem description

Hyper-V VM restore fails with error code HYPERV11

Cause

The account “virtual machines” doesn’t have write permissions on the folder where the VM guest state is stored.

Traceback

  1. Follow the instructions provided in the link below to obtain job logs.
    How to collect the detailed job logs
  2. Extract the logs and go to Phoenix<YYYYMMDD>_<timestamp>.log file to see the below traceback in the logs.
    SyncError: Import failed. Import task failed to copy file from 'X:\Druva Backups\Planned \Virtual Machines\Phoenix\xxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx.vmgs' to 'C:\ProgramData\Microsoft\Windows\Hyper-V\Planned Virtual M)achines\xxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx.vmgs': The file or directory is corrupted and unreadable. (0x80070570). (#10009000b : 32768) (Error Code : HYPERV11

Resolution

  1. The vmgs file is used for version 8.2 or higher Hyper-V virtual machines and is used to store the virtual machine guest state. It is located in the configured Disk folder on the local disk in case of standalone Hyper-v host or on the CSV volume in case of Clustered Hyper-v hosts 
    e.g. C:\ProgramData\Microsoft\Windows\Hyper-V\Planned Virtual Machines in the above log snippet
  2. The virtual machine data gets restored to the location specified during the restore however saving the guest state fails which causes the restore to fail
  3. Edit the permissions for the folder and assign the account “virtual machines” write permission.
  4. Rerun the restore and it should be successful
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