Displaying real storage memory statistics

Use the MODIFY AXR,IAXDMEM command to display real storage memory statistics. The IAR049I message displays the following information:
  • Memory utilization statistics in the 1M LFAREA

    The 1M LFAREA is defined by the LFAREA parameter in the IEASYSxx member of parmlib. For details, see the LFAREA information in z/OS MVS Initialization and Tuning Reference.

  • Memory utilization statistics in the 2G LFAREA

    The 2G LFAREA is defined by the LFAREA parameter in the IEASYSxx member of parmlib. For details, see the LFAREA information in z/OS MVS Initialization and Tuning Reference.

  • Memory utilization statistics in the PLAREA

    The PLAREA is defined by the system and contains a pool of pageable 1M frames that can be used to satisfy pageable 1M page requests.

  • Dedicated Memory usage statistics.
  • General memory utilization statistics

Syntax

The syntax to invoke the IAXDMEM exec is: 
 

F AXR,IAXDMEM [DMEM [,JOBLIST | ,ASID=aa | ,JOBNAME=job]] | SHOWIARPRM

Parameters

The parameters are:

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IAXDMEM
The name of the REXX exec that displays the real storage utilization statistics.
DMEM
The output describes Dedicated Memory.
JOBLIST
The output describes usage of Dedicated Memory across all jobs in the system.
ASID
The output describes usage of Dedicated Memory for the address space corresponding to the specified ASID.
JOBNAME
The output describes usage of Dedicated Memory for a specific job.
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Start of changeThe command response when SHOWIARPRM is specified will be as follows:
IAR080I SHOWIARPRM V1.0
DEDICATEDMEMORY: xxxx.xUU
PROMPT: NO|YES
RESTRICTPFtcads: NO|YES
IARR2V_REQAUTH: NO|YES
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