Backup Exec 2012: AVVI GRT Restore of a virtual machine from an incremental backup set fails with error - Failed to mount one or more virtual disk images

Article:TECH198569  |  Created: 2012-10-18  |  Updated: 2013-03-11  |  Article URL http://www.symantec.com/docs/TECH198569
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Article Type
Technical Solution


Problem



Granular Recovery Technology (GRT) Restore of a Virtual Machine from Vmware agent based incremental backup fails with error “Final error: 0xe0009741 - Failed to mount one or more virtual disk images. Restores that use Granular Recovery Technology may not be available from this backup set.”


Error



Job log shows the following error:

0xe0009741 - Failed to mount one or more virtual disk images. Restores that use Granular Recovery Technology may not be available from this backup set

 

SGMON debug log shows following errors:

BEREMOTE: [mounter] - VDiskMounter::IsVolumeNtfs() GetVolumeInformation failed with error: 0x15

BEREMOTE: [mounter] - VDiskMounter::GetBaseMountPoint: selected volume 'T:\TEMP\Backup Exec' for mount points

BEREMOTE: [mounter] - VDiskMounter::GetBaseMountPoint: just created mount point base 'T:\TEMP\Backup Exec\MP01'

BEREMOTE: [mounter] - VMware_Remote_VDiskMounter::PreMountSomeDisks (): file \\.pdvfs\<servername>\2\BEData\STHVMDK\IMG001902\virtFileList not found. Error: 2. No need to use the virtualized disks.

BEREMOTE: [mounter] - GetVolumeInformation for: \\.pdvfs\<servername>\2 \BEData\STHVMDK\IMG001902\<vm name>.vmdk

BEREMOTE: [mounter] - Error: Cannot find MBR sector

BEREMOTE: [mounter] - VDiskMounter::MountSomeDisks: failed to find volume, mount string MountType: "4" OrigVolGUID: "Volume{2a5ad0b2-605b-11e0- 9aac-0050569f173c}" File: "<vm name.vmdk>" Offset: "1048576" Letter: "D:"

BEREMOTE: [mounter] - Error mounting disks (0xe0009741)

BEREMOTE: [fsys\ntfs\img_pdi] + img_pdi_attach.cpp (581):

BEREMOTE: [fsys\ntfs\img_pdi] | Error mounting disk(s): E_IMG_FS_FAILED_TO_MOUNT_VIRTUAL_DISK (0xe0009741).


Solution



Workaround:

Restores from full backups are successful.

For future restores, run only GRT based Full backups of the affected VM using the AVVI agent.

 

 

Symantec Corporation has acknowledged that the above-mentioned issue is present in the current version(s) of the product(s) mentioned at the end of this article. Symantec Corporation is committed to product quality and satisfied customers.
This issue is currently under investigation by Symantec Corporation. Pending the outcome of the investigation, this issue may be resolved by way of a patch or hotfix in current or future revisions of the software. However, this particular issue is not currently scheduled for any release.  If you feel this issue has a direct business impact for you and your continued use of the product, please contact your Symantec Sales representative or the Symantec Sales group to discuss these concerns.  For information on how to contact Symantec Sales, please see 
http://www.symantec.com Please be sure to refer back to this document periodically as any changes to the status of the issue will be reflected here.

NOTE:
Customers experiencing this issue are encouraged to contact Symantec Technical Support as data is still being collected to assist in resolving this issue.


Supplemental Materials

SourceETrack
Value2969469
Description

AVVI: Restore of individual file or folder from an AVVI incremental backup of a VM fails with error “0xe0009741 - Failed to mount one or more virtual disk images”


SourceError Code
Value0xe0009741
Description

Failed to mount one or more virtual disk images. Restores that use Granular Recovery Technology may not be available from this backup set


SourceUMI
ValueV-79-57344-38721
Description

Failed to mount one or more virtual disk images. Restores that use Granular Recovery Technology may not be available from this backup set



Article URL http://www.symantec.com/docs/TECH198569


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