IC52341: TSM SERVER MIGRATION PROCESS MAY FAIL WITH ANR1025W AND ANR1086E INDICATING INSUFFICIENT SPACE AVAILABLE IN THE STORAGE POOL

APAR status

• Closed as unreproducible.

Error description

• A TSM Server migration process may fail due to the fact
  that a reclamation process has been spawned by the migration
  process and there is not enough space in the storage pool
  to reclaim a volume.
  .
  Reclamation threshholds are checked
  by default when an automatic (threshhold) migration process
  is started. If there are volumes that need to be reclaimed, the
  migration process will attempt to reclaim those volumes prior to
  migrating any data to the next storage pool. If the reclamation
  of the volume(s) fail, the migration process will fail and no
  data will be migrated out of the storage pool.
  .
  These are the typical messages associated with this type of
  failure:
  .
  ANR1000I Migration process XXX started for storage pool
  XXXXXXXX
  ANR1040I Space reclamation started for volume XXXX, storage pool
  XXXXXX
  ANR4520I Storage Pool XXXXXX is being skipped during a
  space allocation. A request for XXX megabytes was made but only
  XXX megabytes were available.
  ANR1086E Space reclamation is ended for volume XXXX
  There is insufficient space in storage pool.
  ANR1025W Migration process XXX terminated for storage pool
  XXXXXXX - insufficient space in subordinate storage pool.
  .
  NOTE: This problem will not affect the migrate stgpool command
  if the default "reclaim" value is used (reclaim=no).
  .
  Platforms affected: All TSM 5.3 and 5.4 TSM Servers
  .
  Customer/L2 Diagnostics:
  None
  .
  Initial Impact: Medium
  .
  Additional Keywords: BFRC_NO_SPACE BFRC_OUT_OF_SPACE
                       AfMigrVolumeThreadfail MSGANR1025W
                       reclaim out of space migrate migrating full
                       MSGANR1086E
  

Local fix

• 1) Set the reclaim threshhold to 100% for the storage pool being
  migrated.
  2) Use the migrate stgpool command with reclaim=no (default) to
  prevent reclamation from starting.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of IBM Tivoli Storage Manager.     *
  ****************************************************************
  * PROBLEM DESCRIPTION: See ERROR DESCRIPTION.                  *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Under certain conditions, migration process may
  fail with ANR1025W and ANR1086 due to there is
  not enough space in the storage pool to reclaim
  a volume for a reclaimation initiated from the
  migration process.
  

Problem conclusion

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

Applicable component levels