VSS method platform backup fails to backup search service application.

Technote (troubleshooting)


Problem(Abstract)

Using Tivoli Storage Manager for Microsoft Sharepoint, how can search service application backup failure be prevented?

Symptom

Platform backup reports failures such as:


BRAdminComponent Content data : Farm(Farm)\Shared
Services\Shared Services Applications\Enterprise Search Service
Application\Duerr-SPSQL-PRD_SA_Search_Duerr-SPSSQL-PRD-SA-Search\Admin
(F: on ABC-1234) 0 KB 0 s Failed
Error:Component error : System.NullReferenceException: Object reference
not set to an instance of an object.
at
Avepoint.VCSPFarm.VSSWorker.AveVssSnapshotWorker.EnableAndGatherWriterData()

BRCrawlComponent Content data :
Farm(Farm)\Shared Services\Shared Services Applications\Enterprise
Search Service
Application\Duerr-SPSQL-PRD_SA_Search_CrawlStore_Duerr-SPSSQL-PRD-SA-Sea
rch\Crawl-0 (F: on ABC-1234) 0 KB 0 s Failed
Error:Component error : System.NullReferenceException: Object reference
not set to an instance of an object.
at
Avepoint.VCSPFarm.VSSWorker.AveVssSnapshotWorker.EnableAndGatherWriterData()

BRQueryComponent Content data :
Farm(Farm)\Shared Services\Shared Services Applications\Enterprise
Search Service
Application\Duerr-SPSQL-PRD_SA_Search_PropertyStore_Duerr-SPSSQL-PRD-SA-
Search\Index Partition 0\Query-0 (F: on ABC-1234) 0 KB
0 s Failed
Error:Component error : System.NullReferenceException: Object reference not set to an instance of an object.

Cause

The reason why Tivoli Storage Manager for Microsoft Sharepoint failed to backup the search service application with VSS backup method is because it failed to get the metadata of the OSearch writer.

Resolving the problem

After you make sure that the service logon user of "SharePoint Server Search 14" is a member of "Local Administrators" group, please restart the "SharePoint Server Search 14" service and "Volume Shadow Copy" service. And you also need to check whether DocAve Agent account has enough permission on the agent server which hosts the index server.


After checking the permission of "SharePoint Server Search 14" service, then please check whether the OSearch could be loaded;
run "cmd.exe" as administrator in the agent server (the index server) -> enter command "vssadmin list writers", then check whether the writer named "OSearch14 VSS Writer" can be seen in the list.

If the "OSearch14 VSS Writer" is in the list, please uncheck the search service application node "Search Service Application" and its child nodes in the plan, and then create a new plan to save this node, rerun a new backup job on the new plan.


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Document information


More support for:

Tivoli Storage Manager for Microsoft SharePoint

Software version:

6.1

Operating system(s):

Windows

Reference #:

1613236

Modified date:

2013-09-19

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