IT23731: SPECTRUM PROTECT SERVER ON AIX MAY RUN INTO PAGING AND OUT OF MEMORY CONDITION

8.1.1.200-IBM-SPSRV-WindowsX64
8.1.1.200-IBM-SPSRV-Linuxx86_64
8.1.1.200-IBM-SPSRV-Linuxs390x
8.1.1.200-IBM-SPSRV-Linuxppc64le
8.1.1.200-IBM-SPSRV-AIX
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
IBM Spectrum Protect Server V8.1.1.X interim fix downloads

APAR status

• Closed as program error.

Error description

• .
  Running IBM Spectrum Protect Server on AIX, the server process -
  dsmserv's memory usage will continue increase and may trigger
  heavy paging and cause AIX system abort when paging space
  exhaust.
  AIX IBM Spectrum Protect users running "local protect " may
  likely run into this issue. We are not aware of anything causing
   this issue outside of local protect.
  
  L2/customer Diagnostics:
  
  Execute :
  1: Spectrum protect Server command: show alloc
  2:AIX command :
   ps -ef|grep dsmserv
  
  svmon -P pid_of_dsmserv -O unit=KB,segment=on,filtertype=working
  | egrep -v clnt
  
  for example:
  1:show alloc:
  
  ...
    Space in ordinary blocks in use       813,092,160 bytes
    Space in free ordinary blocks       3,194,387,936 bytes
  ...
  
  From above data::
  -"  Space in ordinary blocks in use" or "in use memory": ~800MB
  ~" Space in free ordinary blocks" or "free memory" :   ~3GB
  
  2: from svmon:
  
  svmon -P 28901622 -O unit=KB,segment=on,filtertype=working |
  egrep -v clnt
  
  ----------------------------------------------------------------
  ---------------
       Pid Command            Inuse           Pin     Pgsp
  Virtual
  28901622 dsmserv        3,391,064    44116        0  3,391,064
  
  
  From above data:
  dsmserv process used ~3.3GB Virtual memory.  This value is close
  to the "free memory "+ in use memory". While ideally the amount
  of memory used by dsmserv process should close to the " in use
  memory".
  
  
  This will not change the memory requirements for the server,
  this only helps us to not get into paging space as frequently or
  to minimize the effects once we do need to get into paging
  space.
  

Local fix

• Recycle IBM Spectrum Protect Server instance when the paging is
  high or periodically to release the memory.
  

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

• The problem was fixed.
  
  Affected platforms:  AIX
  

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

• R81A PSY

     UP