APAR status
Closed as program error.
Error description
Customers running Server versions 6.x along with deduplication may observe unexplained database growth under certain workloads. This can be observed when there is very high rate of deletions and insertions into bf_aggregated_bitfiles in comparison with the total number of rows in that table. L2 diagnostic: If there is unexplainable database growth being seen, this particular issue is suggested by inspecting the output of the command below over a certain period of time like a week: 'db2pd -d tsmdb1 -tcbstats all -full' Seeing a very high rate of insertions and deletions from bf_aggregated_bitfiles suggests that this might be the issue. Reorganizing bf_aggregated_bitfiles, either the table or the indices, does not cause the growth to cease, nor does it make any any space available. Because of the size of this table and the impact to the overall system when doing reorganization, attempting to reorganize it is not recommended as a diagnostic step. Versions Affected: Server 6.1, 6.2 and 6.3 using deduplication Initial Impact: medium Additional Keywords: tsm bf db dedup
Local fix
Problem summary
*************************************************************** * USERS AFFECTED: All Tivoli Storage Manager server users. * *************************************************************** * PROBLEM DESCRIPTION: See error description * *************************************************************** * RECOMMENDATION: Apply fixing level when available. This * * problem is currently projected to be fixed in levels * * 6.2.5 and 6.3.3. Note that this is subject to change at the * * discression of IBM * ***************************************************************
Problem conclusion
This problem was fixed. If there is a clustering index on the BF_AGGREGATED_BITFILES table, the following select will return CLUS for INDEXTYPE. db2 connect to tsmdb1 db2 "select INDEXTYPE from sysibm.sysindexes where name='BFBF_NDX'" If CLUS is returned, follow the instructions in the Local Fix section of the APAR. If REG is returned, no further action is needed. See Technote 1592404 for Local Fix Information: http://www.ibm.com/support/docview.wss?uid=swg21592404
Temporary fix
Comments
APAR Information
APAR number
IC82886
Reported component name
TSM SERVER
Reported component ID
5698ISMSV
Reported release
62W
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2012-04-25
Closed date
2012-05-25
Last modified date
2016-08-18
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
R62A PSY
UP
R62H PSY
UP
R62L PSY
UP
R62S PSY
UP
R62W PSY
UP
R63A PSY
UP
R63H PSY
UP
R63L PSY
UP
R63S PSY
UP
R63W PSY
UP
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Document Information
Modified date:
18 August 2016