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Matthew_Grainge's avatar
Matthew_Grainge
Level 3
18 years ago

The VSS Provider vetoed the operation

We are recieving the above error when attempting to back up one of our servers, after a reboot the backups will work for between 2 days and a week but then fail again.

This is in the application log as event 100 and in the system log as event 20, source volsnap (The shadow copies of volume D: were aborted because of a failed free space computation.)

We have upgraded too the latest version of BESR and the latest version of VSS from Microsoft in an attempt to fix this but it still occurs.

Any ideas?
Backup and Recovery
BESR 7.x and Earlier
System Recovery

6 Replies

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  • Philip_Pearson's avatar
    Philip_Pearson
    Level 6
    18 years ago
    Are you short of hard drive space on d?

    Are you backing up C and D, if you are not backing up C and VSS determines that a shadow copy of C needs to be done to back up its data then it will veto the operation.
  • Matthew_Grainge's avatar
    Matthew_Grainge
    Level 3
    18 years ago
    We are backing up borh C and D.

    There is over 1 and a half TB free on D and over 3 TB on the drive where the image is supposed to be written to, so I dont think free space is an issue.
  • Philip_Pearson's avatar
    Philip_Pearson
    Level 6
    18 years ago
    The VSS can veto an operation if it does not backup sufficient data, are there other drives on the machine you are not backing up? Are you excluding anything from your selection list
  • Philip_Pearson's avatar
    Philip_Pearson
    Level 6
    18 years ago
    Check out this link in msdn, it goes through the intention of VSS and how to utilise it from a programmers point of view.

    It may give you some pointers although from the sounds of it you have the bases covered

    http://msdn2.microsoft.com/en-us/library/aa384995.aspx