IC94759: VOLUME CLEAR LOCK AT SERVER STARTUP FOR AN ACSLS LIBRARY MAY NEED A LONG TIME

IBM Tivoli Storage Manager V6.3 Fix Pack 5 (6.3.5.000) Server Downloads
IBM Tivoli Storage Manager V7.1 Fix Pack 1 (7.1.1.000) Server Downloads

APAR status

• Closed as program error.

Error description

• At Tivoli Storage Manager server startup all library volumes
  for an ACSLS library are locked when they are in use.
  The volume clear lock is running for each library volume one
  after the other.
  This may take a long time when a high number of library volumes
  are in use and might result in long mediawaits.
  
  This APAR is opened to document the requirement to skip this
  lock processing during server startup.
  
  Customer/L2 Diagnostics :
  Example from a trace of the start of s server with
  TRACE ENABLE MMS being placed in the dsmserv.opt file:
  
  13:48:04.985 [20][mmsacsls.c][7174][LibClearLock]:Begin
    LibClearLock type=6
  
  -> approx. 2 seconds later:
  
  13:48:07.098 [20][mmsacsls.c][7204][LibClearLock]:ClrVolLock
    successful for vol = O01001.
  13:48:07.098 [20][mmsacsls.c][7218][LibClearLock]:End
    LibClearLock with rc = 0.
  
  Next volume:
  
  13:48:07.098 [20][mmsacsls.c][7174][LibClearLock]:Begin
    LibClearLock type=6
  13:48:09.211 [20][mmsacsls.c][7204][LibClearLock]:ClrVolLock
    successful for vol = O01002.
  
  -> approx. 2 seconds later:
  
  13:48:09.211 [20][mmsacsls.c][7218][LibClearLock]:End
    LibClearLock with  rc = 0.
  
  Tivoli Storage Manager Versions Affected:
  Tivoli Storage Manager Server version 5,5, 6.1, 6,2, 6,3 on
  all supported platforms
  
  Initial Impact:
  low
  
  Additional Keywords:
  TSM zz61 zz62 zz63 ACSLS lock
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All Tivoli Storage Manager server users of   *
  *                 ACSLS libraries.                             *
  ****************************************************************
  * PROBLEM DESCRIPTION: See ERROR DESCRIPTION                   *
  ****************************************************************
  * RECOMMENDATION: Apply fixing level when available. This      *
  *                 problem is currently projected to be fixed   *
  *                 in level 6.3.5. Note that this is subject    *
  *                 to change at the discretion of IBM.          *
  ****************************************************************
  *
  

Problem conclusion

• This problem was fixed.  The volume unlock processing at library
  
  initialization will only be done if the new option below is
  enabled as follows:
  
  ACSINITVOLUMEUNLOCK  YES
  
  Affected platforms:  AIX, HP-UX, 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

• 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