IT22944: ANS7899E (RC254) WITH CLIENT SIDE DEDUPLICATION ENABLED USING CONTAINER POOLS WITH REUSEDELAY 0

8.1.6.000-IBM-SPSRV-AIX
8.1.6.000-IBM-SPSRV-Linuxppc64le
8.1.6.000-IBM-SPSRV-Linuxs390x
8.1.6.000-IBM-SPSRV-Linuxx86_64
8.1.6.000-IBM-SPSRV-WindowsX64
8.1.6.000-IBM-SPOC-AIX
8.1.6.000-IBM-SPOC-LinuxPPC64le
8.1.6.000-IBM-SPOC-Linuxs390x
8.1.6.000-IBM-SPOC-Linuxx86_64
8.1.6.000-IBM-SPOC-WindowsX64
8.1.6.000-IBM-SPCMS-Linuxx86_64
8.1.6.000-IBM-SPCMS-WindowsI32
8.1.6.000-IBM-SPCMS-WindowsX64
8.1.6.100-IBM-SPSRV-Linuxppc64le
8.1.6.100-IBM-SPSRV-AIX
8.1.6.100-IBM-SPSRV-Linuxs390x
8.1.6.100-IBM-SPSRV-Linuxx86_64
8.1.6.100-IBM-SPSRV-WindowsX64
IBM Spectrum Protect Server V8.1 Fix Pack 6 (V8.1.6) Downloads
IBM Spectrum Protect Server V8.1.6.X interim fix downloads

APAR status

• Closed as program error.

Error description

• When using client side deduplication, the following failure can
  occur during client backup/archive to either a directory or
  cloud container storage pool on the IBM Spectrum Protect Server:
  
  ANS7899E (RC254)  The client referenced a deduplicated extent
  that does not exist on the IBM Spectrum Protect server
  
  
  Obtaining a server side trace using the SESSION SESSIOND DEDUP
  SD classes will show entries similar to  :
  
  
  [sddelete.c][2948][SdGetChunkRefCount]:Chunk 8274593892067912831
   in pool 4, rcu count=0, ro count=0, refcount=0, sdrc count=0.
  [sddedup.c][3192][FindChunkInDB]:The last reference date
  10-06-2017 10:20 is earlier than the reuse check date 10-06-2017
  10:21. The chunk cannot be reused.
  [sddedup.c][3324][FindChunkInDB]:Exit: rc=1116, no match found -
  poolId 4, chunkSize 756897, SHA1 6F011771, chunkId 0, flags 0,
  compressed True.
  [sddedup.c][1753][sdFindChunkInPool]:Did not find a match in the
  DB, in-flight checking not enabled or no controlP. Returning no
  match.
  [sdcreate.c][2855][SdWriteDedupData]:No match found in SDCL and
  no data sent. Return 3268 (LINKS_INVALID). For SHA=6F011771,
  chunkSize=756897
  [sdcreate.c][3114][SdWriteDedupData]:batchP 000002299ED6A000,
  batchP->numChunks 5000
  [sdcreate.c][3126][SdWriteDedupData]:chunkP 000002299ED7F300 is
  initialized, index = 319, chunkP->mediaSize = 842560, bufLeft =
  7181296
  [sdcreate.c][3152][SdWriteDedupData]:Exit: rc=3268, totObjChunks
  318, bufLeft 7181296
  [sdprodcon.c][3961][SdQueueSignalWriteConsumerCompletion]:Exit:
  rc=0, WriteControlP 00000229DE3AA000
  
  [sdbuf.c][758][SdWaitCQEmpty]:Enter: Waiting on 1 finished of 2
  requested.
  [sdbuf.c][773][SdWaitCQEmpty]:Exit: rc=0.
  [sdcreate.c][2511][SdStore]:Exit: rc=3268, actSize 9281921,
  rptSize 1454771586
  [sdcreate.c][1580][sdCreate]:Exit: rc=3268, bfId 13693149
  [bfcreate.c][9765][CreateBitfile]:Rc GRC_LINKS_INVALID from
  xxCreate.
  [smtrans.c][6275][SmAbsorbData]:Have pushed verb False for
  S1SQL02_SQL(72803).
  
  [smnode.c][29357][CreateBitfile]:(72803)bfCreate returned 3013
  when termReason is (0)
  [smnode.c][18154][SmDoBackInsNormEnhanced]:CreateBitfile rc=254
  [smnode.c][9926][SmNodeSession]:InsertVerbReceived
  [smnode.c][9932][SmNodeSession]:(S1SQL02_SQL(72803)): verb(c5)
  state(2) txnRc(254).
  
  Note that you will see the "last reference date" within a minute
  of the "reuse check date" and the write will fail with an RC
  254.
  
  This is seen when the following conditions are met :
  
  Client side deduplication is in effect
  The REUSEDELAY for the container pool being set to 0
  
  Tivoli Storage Manager Versions Affected:
  IBM Spectrum Protect versions 7.1.3 and higher and 8.1 and
  higher on all platforms.
  
  Initial Impact: Low|Medium|High
  Low
  
  Additional Keywords:
  TSM, container, dedup, extent
  

Local fix

• Update the REUSEDELAY value to be greater than 0 on the
  container pool or disable client side deduplication so to allow
  server side deduplication within the container pool to process
  the data
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All IBM 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     *
  * 8.1.6.                                                       *
  * Note that this is subject to change at the discretion of     *
  * IBM.                                                         *
  ****************************************************************
  

Problem conclusion

• This problem was fixed.
  Affected platforms for reported release:  AIX, Linux, and
  Windows.
  Platforms fixed:  AIX, Linux, and Windows.
  

Temporary fix

Comments

APAR Information

• 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