Direct links to fixes
APAR status
Closed as program error.
Error description
A client restore or retrieve can witness poor performance on the query operations associated with the restore/retrieve processing when there are damaged extents within the IBM Spectrum Protect Server database. The existence of any damage can trigger this. The more entries in the table the perf can get worse. However, the degradation is more dependent on the number of inventory queries being performed. For example, if the retrieve is for a Data Protect SAP Client which makes thousands upon thousands of ArchQry calls, the performance degradation can be so significant that it appears the client is not making any progress at all. Performance statistics on the Server for the client thread will show a large amount of time is spent in DB2RegExec, for example: Operation Count Tottime Avgtime Mintime Maxtime --------------------------------------------- DB2 Reg Exec 3116 240.706 0.077 0.000 0.674 The existence of the damaged chunks can also affect the performance of a client backup. DIAGNOSTICS: To check for damage in the container the stgpool: q damaged <pool name> If damage is reported, then the following command can be used to re-process the previously marked damaged data to determine if it is still in a damaged state: audit container stg=<pool name> action=scandamaged IBM Spectrum Protect Versions Affected: IBM Spectrum Protect Server Initial Impact: High Additional Keywords: TSM, Tivoli, Storage, Manager, TDP
Local fix
Either repair the damaged entries OR delete them with AUDIT CONTAINER STG=<pool name> REMOVEDAMAGED=YES.
Problem summary
**************************************************************** * USERS AFFECTED: * * All IBM Tivoli Storage Manager and Spectrum Protect server * * users. * **************************************************************** * PROBLEM DESCRIPTION: * * See error description. * **************************************************************** * RECOMMENDATION: * * Apply fixing level when available. This problem is currently * * projected to be fixed in level 8.1.4. Note that this is * * subject to change at the discretion of IBM. * ****************************************************************
Problem conclusion
This problem was fixed. Affected platforms for reported release: AIX, Solaris, Linux, and Windows. Platforms fixed: AIX, Linux, and Windows.
Temporary fix
Comments
APAR Information
APAR number
IT20417
Reported component name
TSM SERVER
Reported component ID
5698ISMSV
Reported release
71L
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2017-05-01
Closed date
2017-10-09
Last modified date
2017-10-09
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
TSM SERVER
Fixed component ID
5698ISMSV
Applicable component levels
[{"Line of Business":{"code":"LOB26","label":"Storage"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSGSG7","label":"Tivoli Storage Manager"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.1.3"}]
Document Information
Modified date:
13 February 2021