vcbMounter Error Backup snapshot already exists

Issue:

When running vcbMounter with the “-t file” switch you receive the following error.

 

[2008-11-05 09:06:10.647 'vcbMounter' 3880 error] Error: Backup snapshot already exists.

 

Cause:
A previous vcbMounter command to mount the virtual machine file system was not properly unmounted. 

 

Solution:

You must manually delete the existing “_VCB-BACKUP_” snap-shot in VirtualCenter using the VI Client.

 

1)      Open the VI Client

2)      Right click the affected virtual machine

3)      Select Snapshot…Snapshot Manager

4)      Select _VCB-BACKUP_

5)      Click Delete

6)      Click Yes

 

 

More Information:

Using vcbMounter with the “-t file” switch causes VirtualCenter to create a snapshot of the target virtual machine.  After the backup is performed of the virtual machine file system run the following command to properly unmount the virtual machine file system and automatically delete the snapshot.

 

vcbmounter -h vcserver -u domain\vcbuser -p password -U drive:\path

 

Where “drive:\path” is location where the file system was originally mounted.  You should see a file called unmount.dat in this folder.  Make sure there are currently no applications accessing this folder prior to unmounting it.