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Title
On Quiesced backup "An error occurred while quiescing the virtual machine." -
Description
A backup job fails with:
An internal error occurred during execution, please contact Quest support if the error persists. Error Message: API Call failed with message: An error occurred while quiescing the virtual machine. See the virtual machine's event log for details.
Taking a quiesced snapshot using vSphere Client also fails with:
The guest OS has reported an error during quiescing. The error code was: 2 The error message was: Custom quiesce script failed.
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Cause
A pre-freeze-script.bat file found under C:\Windows may exist on the machine which you are trying to quiesce and is conflicting with the freeze.bat found under C:\Program Files\VMware\VMware Tools\backupScripts.d.
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Resolution
Remove the pre-freeze-script.bat file found under C:\Windows. You should then be able to take a quiesced snapshot using vSphere Client and also backup successfully. -
Additional Information
In this case we found this issue specifically when working with a VM on an ESXi 5.1 host. This VMware KB shows locations where you may find other freeze.bat scripts on a VM: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1006671