IT23728: ANR0379W CONCURRENT TIERING AND REPLICATION DEADLOCKS

8.1.5.000-IBM-SPCMS-WindowsX64
8.1.5.000-IBM-SPCMS-WindowsI32
8.1.5.000-IBM-SPCMS-Linuxx86_64
8.1.5.000-IBM-SPOC-WindowsX64
8.1.5.000-IBM-SPOC-Linuxx86_64
8.1.5.000-IBM-SPOC-Linuxs390x
8.1.5.000-IBM-SPOC-LinuxPPC64le
8.1.5.000-IBM-SPOC-AIX
8.1.5.000-IBM-SPSRV-WindowsX64
8.1.5.000-IBM-SPSRV-Linuxx86_64
8.1.5.000-IBM-SPSRV-Linuxs390x
8.1.5.000-IBM-SPSRV-Linuxppc64le
8.1.5.000-IBM-SPSRV-AIX
IBM Spectrum Protect Server V8.1 Fix Pack 5 (V8.1.5) Downloads

APAR status

• Closed as program error.

Error description

• Concurrent tiering and replication involving the same object IDs
  may deadlock.
  The server activity log will have the message:
  ANR0379W A server database deadlock situation has been
  encountered; the lock request for the SD Object ID lock,
  xxxxx will be denied to resolve the deadlock.
  
  DIAGNOSTICS:
  
  The server activity log will show something similar to the
  following:
  11/07/2017 19:50:14      ANR0379W A server database deadlock
  situation has been
                                      encountered; the lock
  request for the SD Object ID lock,
                                      9537238 will be denied to
  resolve the deadlock.
  11/07/2017 19:50:14      A Deadlock was found:
  11/07/2017 19:50:15      ANR1936E Replication of BACKUP data for
  file space /data
                                      (fsId 1) on node NGNODE23
  failed with reason:
                                      Reason code 1020. (SESSION:
  4755, PROCESS: 81)
  11/07/2017 19:50:15      Transaction 0:2920963.
  11/07/2017 19:50:15        Waiting for Lock mode xLock on:
  Type=20009(SD Object ID) ,
                                        NameSpace=0, Key='9539436'
  11/07/2017 19:50:15        Held by transaction 0:2904442 in mode
  sLock.
  11/07/2017 19:50:15      Transaction 0:2904442.
  11/07/2017 19:50:15        Waiting for Lock mode sLock on:
  Type=20009(SD Object ID) ,
                                        NameSpace=0, Key='9537238'
  11/07/2017 19:50:15        Held by transaction 0:2920963 in mode
  xLock.
  11/07/2017 19:50:15      Lock hash table contents (slots=3002):
  11/07/2017 19:50:15      Note: Enabling trace class TMTIMER will
  provide additional
                                      timing info on the following
  locks
  11/07/2017 19:50:15      slot -> 0:
  11/07/2017 19:50:15      LockDesc: Type=20009(SD Object ID),
  NameSpace=0,
                                      SummMode=xLock,
  Key='9249235'
  11/07/2017 19:50:15        Holder: (sctierbatch.c:1334 Thread
  317) Tsn=0:2930104,
                                       Mode=xLock
  11/07/2017 19:50:15      LockDesc: Type=20006(SD Pool SHA1
  Value), NameSpace=7, Sum
  
  
  
  
  
  
  IBM Spectrum Protect Versions Affected:
  All versions of IBM Spectrum Protect server 8.1.4 or higher.
  
  Initial Impact: High
  
  Additional Keywords: TSM, Tivoli, Storage, Manager REPLICATE
  NODE
  

Local fix

• Avoid concurrent tiering and replication or adjust the
  replication and tiering settings such that
  objects are replicated prior to becoming eligible to be tiered.
  Review QUERY STGRULE and UPDATE STGRULE for information on
  tiering between container storage pools.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All IBM Spectrum Protect server users.                       *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See error description.                                       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply fixing level when available. This problem is currently *
  * projected to be fixed in level 8.1.5. Note that this is      *
  * subject to change at the discretion of IBM.                  *
  ****************************************************************
  

Problem conclusion

• This problem was fixed.
  Affected platforms for reported release:  AIX, Linux, and
  Windows.
  Platforms fixed:  AIX, 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

• R81A PSY

     UP

• R81L PSY

     UP

• R81W PSY

     UP