OA47752: NEW FUNCTION: WLM SUPPORT FOR HARDWARE ABSOLUTE GROUP CAPPING BY LPAR FIRMWARE

Obtain the fix for this APAR.

APAR status

• Closed as new function.

Error description

• New Function
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of z/OS 2.1  (HBB7790) and         *
  *                 above.                                       *
  ****************************************************************
  * PROBLEM DESCRIPTION: New function: WLM support for hardware  *
  *                      absolute group capping by LPAR firmware *
  *                                                              *
  *                      With the new z13 hardware function,     *
  *                      hardware absolute group capping         *
  *                      customers can specify the physical      *
  *                      usage of processors within a group of   *
  *                      logical partitions on the HMC.          *
  *                      WLM has been updated to recognizes      *
  *                      the LPAR capacity limit inherited       *
  *                      by the hardware group.                  *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  New function
  
  Module IRASR204 class SRMLCCT method
  GetOtherValules has been changed to get the
  hardware group capacity value from IRAD204
  (LcctHardwareGroupCpuTypeCapCp).
  
  Module IRASR204 class SRMLCCT method CalculateCapacity
  calculates the image capacity. The hardware group capping
  value is now considered in the image capacity calculation.
  It is the minimum of the following:
   1. the minimum of Softcap and GroupLimit if there is one
   2. capacity based on full use of all logical CPs
   3. capacity based on weight if the partition is capped
   4. capacity based on PR/SM capping limit (unit: # of CPUs)
   5. capacity based on HardwareGroup cap limit (unit: # of CPUs)
  
  Similarly, methods Calculate_Free_LPAR_capacity and
  Calculate_LPAR_capacity in IRAPAPCA both include the hardware
  group capping value in the MINIMUM calculation.
  
  Module IRASRCPC has been updated to now consider the hardware
  group capping value in its calculation of the minimum image
  capacity.  The result is propogated to the RCTIMGWU field.
  The image capacity is reported via Sysevents QVS and REQLPDAT.
  
  IRABAINI has been updated to obtain and store the hardware
  group capping values.
  
  IRABASSI now takes the Hardware Group capping value into
  consideration when calculating the LPAR capacity limit.  It
  calculates the LPAR capacity limit as the minimum of the
  capacity defined by the number of LCPs, the PR/SM absolute
  capping value, and the HardwareGroup capping value.
  
  IRASMF99 includes new fields: HWGroupname + HWGroupCpuTypeCap
  (Cp/Ziip/Zaap) IRAPASS1/SRMSMF copies the new fields to SMF99
  record subtype1.
  

Problem conclusion

• KEYWORDS: E2964/K E2965/K
  

Temporary fix

Comments

• New function.
  
  +--- Documentation to be updated ------------------------------+
  
  z/OS 2.1:
  SA38-0667-03 -- z/OS MVS System Management Facilities (SMF)
  
  z/OS 2.2:
  SA38-0667-04 -- z/OS MVS System Management Facilities (SMF)
  
  +--- Update ---------------------------------------------------+
  Chapter 14. SMF Records
    Record Type 99 (63)  System Resource Manager Decisions
      Subtype 1
        Software Licensing Information Section:
  
  Offsets Name                         Length Format Description
  
   84 54 SMF99_HardwareGroupname           8  EBCDIC
                                  Hardware Group name
  
  
  
   92 5C SMF99_HardwareGroupCpuTypeCapCp   4  binary
                                  Hardware Group is capped by
                                  PR/SM to a limit which is
                                  defined in hundredths of
                                  processor units
  
   96 60 SMF99_HardwareGroupCpuTypeCapZaap 4  binary
                                  Hardware Group is capped by
                                  PR/SM to a limit which is
                                  defined in hundredths of
                                  processor units
  
  100 64 SMF99_HardwareGroupCpuTypeCapZiip 4  binary
                                  Hardware Group is capped by
                                  PR/SM to a limit which is
                                  defined in hundredths of
                                  processor units
  
  Keyword : D/T2964
  

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UA90993 UA90994

Modules/Macros

• IEAVNP10 IRABAADJ IRABADRV IRABAINI IRABASMF
  IRABASSI IRAPALCD IRAPAPCA IRAPASMD IRAPASMF IRAPASM2 IRAPASSB
  IRAPASS1 IRAPASS2 IRAPASS3 IRAPASS4 IRAPASS5 IRAPASS6 IRAPASS7
  IRAPASS8 IRAPAS2D IRARMSMF IRASASMF IRASMF99 IRASRCPC IRASR204
  IWMC4SMF
  

Fix information

• Fixed component name

  SRM - SYS RSRCE

• Fixed component ID

  5752SC1CX

Applicable component levels

• R7A0 PSY UA90994

     UP16/03/09 P F603

• R790 PSY UA90993

     UP16/03/09 P F603

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.