Sharepoint GRT backup fails with error The Database Recovery failed with Error 'UNKNOWN ERROR'. You will not be able to restore individual items for this backup selection

Problem

Sharepoint content database GRT backup or GRT catalog may fail with error:

The backup selection 'SharePoint - Sharepoint - 80\Content-DB 1 (SQLSVR\WSS_Content_1)' was not successfully processed for Granular Recovery Technology (GRT). The Database Recovery failed with Error 'UNKNOWN ERROR'. You will not be able to restore individual items for this backup selection

Error Message

V-79-57344-33967 - The backup selection 'SharePoint - Sharepoint - 80\Content-DB 1 (SQLSVR\WSS_Content_1)' was not successfully processed for Granular Recovery Technology (GRT). The Database Recovery failed with Error 'UNKNOWN ERROR'. You will not be able to restore individual items for this backup selection

For disk backup, looking at a debug log for the Backup Exec Server Agent for Windows shows errors related to FsWorkItem but no other errors:

BEREMOTE: [06/13/17 12:57:29] [6484]     [fsys\shared]        - FsWorkItem - unable to attach to pdi DLE C:\BEData\IMG000001
BEREMOTE: [06/13/17 12:57:29] [6484]     [fsys\shared]        - [memento::OpenWrite] - C:\BEData\IMG000001\pdi_state.txt
BEREMOTE: [06/13/17 12:57:29] [6484]     [fsys\shared]        - FsWorkerThread finshed recovery for C:\BEData\IMG000001
BEREMOTE: [06/13/17 12:57:29] [6128]     [fsys\shared]        - starting to terminating work_item_thread C:\BEData\IMG000001

Solution

hotfix is now available for this issue in the current version of the product mentioned in this article. Refer to the Hotfix link under Related Articles to obtain the hotfix needed to resolve the issue.

Backup Exec 16 Rev 1142 Feature Pack 2 ( 000116194)




Workaround
Perform Sharepoint backups with GRT disabled.  If restores of granular items are required from non-GRT backups, use Related Article 000017640. 


 

Etrack : 3891990