IC69156: V6.1 SERVER CAN EXPERIENCE SLOW EXPIRATION PROCESSING ON GROUPED OBJECTS

IBM Tivoli Storage Manager V6.1 Fix Pack 4 (6.1.4) Server Downloads

APAR status

• Closed as program error.

Error description

• The Tivoli Storage Manager Server version 6.1 can experience
  slow expiration when processing a large filespace containing
  many grouped objects.  During this time, the process can appear
  hung on a particular node/filespace.
  .
  This problem typically applies to expiring Windows client
  system state data filespaces, which contains predominately
  grouped objects.
  .
  Additionally, this problem can also happen during DELETE
  FILESPACE processing of a large node filespace containing
  many grouped objects.
  .
  Only the Tivoli Storage Manager Server version 6.1 is
  affected by this issue.
  .
  Customer/L2 Diagnostics:
  Capture a "group imdel imexp addmsg" trace from the server
  during Expiration.  Look for large delays between the
  ImDeleteGroupMemberFast() function and the
  ImDeleteGroupMember() function trace points.  For example:
  01:02:03.456 ￭2￭imgroup.c￭2979￭ImDeleteGroupMemberFast:
               Deleting group relationship for leader
               0.813274981, member 0.813320988, type 2, UL:
               True, UM: False
  01:07:03.456 ￭2￭imgroup.c￭2927￭ImDeleteGroupMember:
               Returning rc=0
  .
  Note that it takes about 5 seconds to process between these
  two trace points, and this indicates the problem.
  .
  Initial Impact:
  Medium
  .
  Tivoli Storage Manager Versions Affected:
  All 6.1 Tivoli Storage Manager Server users.
  .
  Additional Keywords:
  TSM DSMSERV ZZ61 IMDELETEGROUPMEMBER IMDELETEGROUPMEMBERFAST
  GROUPED OBJECTS SYSTEM STATE EXPIRATION SLOW HANG EXPIRE
  INVENTORY DELETE FILESPACE
  .
  

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 level 6.1.4. Note that this is subject    *
  *                 to change at the discretion of IBM.          *
  ****************************************************************
  *
  

Problem conclusion

• The performance has been improved.
  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