IT03325: COPY ACTIVEDATA FROM PRIMARY DISK POOL MIGHT HANGS IF THE DATA IS NOT COLLOCATED AT FILESPACE LEVEL

APAR status

• Closed as program error.

Error description

• The Tivoli Storage Manager server might hang during the COPY
  ACTIVEDATA operation from the primary disk pool if the data to
  be copied belongs to a filespace which is not defined as
  filespace level collocation group member.
  
  In case this condition is true, other running storage operation
  processes may hang and the user could experience system CPU
  spikes.
  
  Customer/L2 diagnostics:
  
  The show thread command output shows a similar callstack:
  
  Thread 59859, Parent 59857: DfCopyActiveDataThread, Storage
  943265, AllocCnt 9795 HighWaterAmt 3681008
   tid=39d3, ptid=34d1, det=1, zomb=0, join=0, result=0, sess=0
    Holding mutex BFV->mutex (0x112a98068), acquired at
  dfcpyact.c(1493)
    Stack trace:
      0x0000000100e161c0 CopyCluster
      0x0000000100e15378 DfCopyActiveDataThread
      0x000000010000cb40 StartThread
  
  Tivoli Storage Manager Versions Affected:
  Tivoli Storage Manager Sever 7.1.x.x on all supported platforms.
  
  Initial Impact:
  Medium
  
  Additional Keywords:
  hang hung zz71 migration stgpool backup cpu performance I/O
  

Local fix

• Restart the Tivoli Storage Manager server application in order
  to temporary cleanup the hang condition.
  

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

Problem conclusion

• This problem was fixed.
  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

• R71A PSY

     UP

• R71H PSY

     UP

• R71L PSY

     UP

• R71S PSY

     UP

• R71W PSY

     UP