Document ID: 331927
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After applying Backup Exec 12.5 Hotfix 328462, an Agent for VMWare Virtual Infrastructure (AVVI) backup job with the "Granular Recovery Technology" (GRT) option enabled, completes with the exception "Failed to mount one or more virtual disk images"
Exact Error Message
V-79-57344-38721 - Failed to mount one or more virtual disk images

Details:

After installing the Backup Exec 12.5 Hotfix 328462, AVVI GRT backup of some of the VMWare Virtual Machines may complete with an exception as shown above.
If the Hotifx 328462 is uninstalled from the Backup Exec server, then the backups complete successfully.

Workaround:
Uninstall the Hotfix 328462 off the Backup Exec server and rerun the backups.

Resolution:

The above mentioned issue has now been fixed by way of a hotfix. Please refer the Related Documents section for more information.


Supplemental Material:

System: Ref.#Description
UMI: V-79-57344-38721 Failed to mount one or more virtual disk images:
ETrack: 1839169 AVVI:HF328462 breaks changes made in HF327135 and GRT backups finish with exception: Failed to mount one or more virtual image

Products Applied:
 Backup Exec for Windows Servers 12.5, 12.5 SP1, 12.5 SP2
Last Updated: October 16 2009 03:24 PM GMT
Expires on: 10-16-2010
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Subjects:
 Backup Exec for Windows Servers
   Application: Backup

Languages:
 Danish, Portuguese, Simplified Chinese, Russian, English (US), French, German, Spanish, Italian, Japanese, Chinese, Korean

Operating Systems:
Windows Server 2003

Standard Server SP2

Windows Server 2008

Standard (x86-32bit) SP2