IC78070: TIVOLI STORAGE MANAGER SERVER MIGHT NOT SEVER CLIENT DEDUP ENABLED BACKUP SESSIONS AFTER A TCP/IP COMMUNICATION PROBLEM

APAR status

• Closed as program error.

Error description

• Tivoli Storage Manager server doesn't time-out the dead sessions
  caused by network communication fault.
  The symptom might be seen if a backup client session has network
  issues (e.g. firewall timeout): even if the client backup ends
  successfully, the affected session may not get automatically
  cancelled
  and stay in Run status indefinitely.
  Problem is only correlated to environment with client
  deduplication in use.
  
  
  
  
  Customer/L2 Diagnostics:
  The backup of node NODE_NAME started on June 3th at  11PM :
  
  03.06.2011 23:00:26
  ------------------------------------------------------------
  03.06.2011 23:00:26 Schedule Name:         INCR_ALL_2300
  03.06.2011 23:00:26 Action:                Incremental
  03.06.2011 23:00:26 Objects:
  03.06.2011 23:00:26 Options:
  03.06.2011 23:00:26 Server Window Start:   23:00:00 on
  03.06.2011
  03.06.2011 23:00:26
  ------------------------------------------------------------
  03.06.2011 23:00:26
  Executing scheduled command now.
  03.06.2011 23:00:30 --- SCHEDULEREC OBJECT BEGIN INCR_ALL_2300
  03.06.2011 23:00:00
  
  
  and ended with success:
  
  04.06.2011 01:49:27 --- SCHEDULEREC OBJECT END INCR_ALL_2300
  03.06.2011 23:00:00
  04.06.2011 01:49:27 Scheduled event 'INCR_ALL_2300' completed
  successfully.
  04.06.2011 01:49:27 Sending results for scheduled event
  'INCR_ALL_2300'.
  
  
  In the activity log we can see that session #12961 started on
  23:00:25 03.06.2011 and never ended, even if this
  is the session that ended the backup:
  
  04.06.2011 01:49:28      ANR2507I Schedule INCR_ALL_2300 for
  domain PD2 started at 06/03/11 23:00:00 for node NODE_NAME
  completed successfully at 06/04/11 01:49:28. (SESSION: 12961)
  
  than there is nothing else for this, until customer had to
  delete it:
  
  
  03.06.2011 23:00:25      ANR0406I Session 12961 started for node
  NODE_NAME (WinNT)(Tcp/Ip nodename.domain.it(3872)). (SESSION:
  12961) ..........................
  05.06.2011 14:08:22      ANR2017I Administrator ADMIN issued
  command: CANCEL  SESSION 12961
  (SESSION: 16039)
  05.06.2011 14:08:22      ANR0490I Canceling session 12961 for
  node NODE_NAME (SESSION: 16039)
  
  From a query session collected before cancelling session #12961
  we can see that this is in "run" state:
  
  Sess   Comm.   Sess   Wait  Bytes   Bytes  Sess  Platform Client
  Number Method  State  Time  Sent    Recvd  Type           name
  ----------------------------------------------------------------
  
  12.961 Tcp/Ip   Run   0 S   321,9 M  19.6K Node  WinNT NODE_NAME
  
  
  
  
  
  
  Tivoli Storage Manager Versions Affected: Tivoli Storage Manager
  v.6.2.x
  
  Initial Impact:
  Medium
  
  Additional Keywords:
  ZZ62 TSM SESSIONS TIMEOUT DEDUP NETWORK ISSUES
  

Local fix

• Cancel the "dead" session with  "cancel session" command.
  

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 6.2.4 and 6.3.1.                   *
  *                 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

• R62A PSY

     UP

• R62H PSY

     UP

• R62L PSY

     UP

• R62S PSY

     UP

• R62W PSY

     UP