OA60641: GROUP CAPACITY LIMIT IS NOT PROPERLY ENFORCED WHEN THE SYSTEM HAS ABSMSUCAPPING ACTIVE AND THERE IS NO DEFINED CAPACITY LIMIT

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Group Capacity limit not properly enforced at z/OS 2.3 when
  Group Capping and Absolute MSU Capping are both active and there
  is no defined capacity limit.
  When ABSMSUCAPPING is active each group member should always
  enforce capping at its share of the group capacity. The error is
  in the case that the group 4 hour consumption is still below the
  group limit each member may be capped at the Group Limit instead
  of the share of the Group Limit.
  

Local fix

• BYPASS/CIRCUMVENTION:
  None
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All users of z/OS 2.3 (HBB77B0) and above.                   *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * Group Capacity limit not properly                            *
  * enforced when Group Capping and                              *
  * Absolute MSU Capping are both active                         *
  * and there is no defined capacity                             *
  * limit.  When ABSMSUCAPPING is active                         *
  * each group member should always                              *
  * enforce capping at its share of the                          *
  * group capacity. The error is in the                          *
  * case that the group 4 hour                                   *
  * consumption is still below the group                         *
  * limit each member may be capped at                           *
  * the Group Limit instead of the share                         *
  * of the Group Limit.                                          *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When a group capacity limit is active together with the OPT
  paramter AbsMsuCapping, the LPAR should be capped to its share
  of the group limit all the time.
  But the module IRAPALCA sets the capping limit of the LPAR to
  the group limit in this case errornously.
  

Problem conclusion

• IRAPALCA has been changed to set the limit of the LPAR to the
  group limit share instead of the group limit itself in the
  described scenario.
  

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:

  UJ04835 UJ04836

Modules/Macros

• IRAPALCA
  

Fix information

• Fixed component name

  WORK LOAD MANAG

• Fixed component ID

  5752SCWLM

Applicable component levels

• R7B0 PSY UJ04835

     UP21/02/17 P F102

• R7C0 PSY UJ04836

     UP21/02/17 P F102

Fix is available

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