Altaro VM Backup Support Centre



Backups failing with a "The file is configured as a file pertaining to this VM, but seems to be missing."

Last Updated: May 18, 2016 11:10AM CEST

PROBLEM


Backups failing with the following error, or even similar error messages pointing to VM files:
 
"The file "D:\exchange-vm\9D543816-28ED-4D5C-A496-947A73AED573.xml" is configured as a file pertaining to this VM, but seems to be missing. (Error code 'ALLOWED_012')
 
Please make sure that this file has not been moved and/or security permissions to this location are configured correctly. Alternatively, remove the file from the VM settings in Hyper-V manager."
 



 

CAUSE

 
This occurs due to the fact that the shadow copy that Altaro VM Backup is reading from gets dismounted, which can occur for a number of reasons. 

 

SOLUTION


The reason for the backup failing is due to the shadow copy getting dismounted. The reason will be listed in a "volsnap" source event in the Windows System event log.

You can take a look at the following article in order to see how to deal with "volsnap" errors.

 

 
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