IC83866: IDENTIFY DUPLICATES PROCESS MIGHT NOT PROCESS LARGE VOLUMES AS EFFICIENTLY AS POSSIBLE LEADING TO SOME PERFORMANCE DEGRADATION.

APAR status

• Closed as program error.

Error description

• The Identify Duplicates process will acquire a volume and
  attempt to process all files that have been committed to that
  volume. If the volume that is being processed contains a large
  number of files, the process may degrade as it works through the
  volume. The reason being is that a search transaction is
  opened/closed for every 10 files that the Identify processes on
  a given volume. If there are thousands/millions of committed
  files on the given volume this can result in many transactional
  build-up and tear-downs resulting in some degraded performance.
  
  The Identify Process should be able to process more files in a
  batch to increase the efficiency of the given search
  transaction.
  
  TSM Versions Affected:
  TSM Server 6.1 or later for all platforms.
  
  Initial Impact: Low
  
  Additional Keywords:
  zz62, zz63, deduplication, performance, identify, atchsize,
  AnalyzeOneBitfile
  

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 discretion of IBM.                       *
  ****************************************************************
  PROBLEM SUMMARY:
  *
  
  AFFECTED PLATFORMS:
  AIX, HP-UX, Solaris, Linux, and Windows.
  

Problem conclusion

• The described problem has been resolved.
  

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

• 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