IC66262: MESSAGE "ANR0530W TRANSACTION FAILED ..." FOR BACKUPS USING A DISK POOL WITH CACHE ENABLED THAT IS FULL

APAR status

• Closed as program error.

Error description

• Backups can fail with "ANR0530W Transaction failed for session
  12345  for node <Node_Name>  - internal server error detected.
  (SESSION: 12345)" when writing to a disk storage pool with cache
  enabled that is full, and where cache space needs to be
  deallocated to allow space for the data to be written. This
  happens when multiple clients request space to be deallocated at
  the same time. A full cache is when a disk storage pool has Pct
  Util as 100% but Pct Migr is less than 100%.
  .
  .
  Customer/L2 Diagnostics:
  A server BF DF SESSION trace will show:
  [...]
  12:44:18.946 [36425][dbitxn.c][1414][ResetTxnDesc]:Table
  DS.Overflow,
  curActivityCount 0 746 (just incremented by 1).
  12:44:18.947 [36425][dbitxn.c][1414][ResetTxnDesc]:Table
  DS.Segments,
  curActivityCount 0 42 (just incremented by 2).
  12:44:18.947 [36425][dbitxn.c][1414][ResetTxnDesc]:Table
  DF.Segments,
  curActivityCount 0 2446 (just incremented by 2).
  12:44:18.947 [36425][dbitxn.c][1414][ResetTxnDesc]:Table
  DF.Bitfiles,
  curActivityCount 0 496 (just incremented by 2).
  12:44:18.947 [36425][dbitxn.c][1414][ResetTxnDesc]:Table
  DF.CachedBitfiles, curActivityCount 0 1540 (just incremented by
  2).
  12:44:18.966 [36425][smnode.c][25016][CreateBitfile]:deallocRc
  224 based
  on deallocation request for poolId 14 for amount 30064771528
  (deallocCount 100 with deallocFactor 2).
  12:44:18.966 [36425][smnode.c][25025][CreateBitfile]:RC 224 from
  space
  deallocation loop with current factor 2.
  .
  .
  Tivoli Storage Manager Versions Affected:
  Tivoli Storage Manager 6.1.3.x on all supported platforms.
  .
  .
  Initial Impact:
  High
  .
  .
  Additional Keywords:
  TSM zz61 cache internal error
  

Local fix

• Disable cache for the disk storage pool. First, update the
  stgpool to have cache=no. This alone does not disable caching.
  You need to run move data for each volumes to new or empty
  volumes, or delete the volumes and create new ones.
  

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 6.1.3.2. and 6.1.4.0. Note   *
  *                 that this is subject to change at the        *
  *                 discretion of IBM.                           *
  ****************************************************************
  *
  

Problem conclusion

• This problem was fixed.
  Affected platforms:  AIX, HP-UX, Sun Solaris,
  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

• R61A PSY

     UP

• R61H PSY

     UP

• R61L PSY

     UP

• R61S PSY

     UP

• R61W PSY

     UP