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PK96498: SPACE MONITOR REPORTS ZERO AS FREE SPACE INCORRECTLY AFTER VTOC INDEX EXTENDED.

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APAR status

  • Closed as program error.

Error description

  • This error occurs after VTOC Index was extended on an HDS DASD
Volume.
When Space Monitor runs against the DASD volume, IOS000I message
appears.
And Space Monitor sets all zero in FREE SPACE ON VOLUME section
in "TOTAL DASD UTILIZATION BY VOLUME/DEVICE-TYPE REPORT".

Local fix

  • N/A

Problem summary

  • ****************************************************************
* USERS AFFECTED: IBM IMS High Performance Pointer Checker for *
*                 z/OS Version 2 Release 2 (FMID=HPC2220)      *
*                 users who use Space Monitor (SPMN).          *
****************************************************************
* PROBLEM DESCRIPTION: Space Monitor reports zero as free      *
*                      space incorrectly after VTOC Index      *
*                      extended.                               *
****************************************************************
* RECOMMENDATION: Apply the maintenance for this APAR.         *
****************************************************************
This error occurs after VTOC Index was extended on an HDS DASD
Volume.

SPMN issues OBTAIN macro with an absolute disk address to search
the FORMAT-1 DSCB of VTOC index data set, reads VTOC Index, and
gets free space information.

However, SPMN encounters OBTAIN macro failure, because the
FORMAT-1 DSCB of VTOC index data set is not in the specified
address in case of HDS DASD.

This is why MSGIOS000I is issued incorrectly and SPMN
sets all zero in FREE SPACE ON VOLUME section in "TOTAL DASD
UTILIZATION BY VOLUME/DEVICE-TYPE REPORT".

Problem conclusion

  • The following modules are modified to issue OBTAIN MACRO with
VTOC data set name.

FABKCOLL,FABKGRUP,FABKMGTB

Temporary fix

  •

Comments

  •

APAR Information

  • APAR number

    PK96498

  • Reported component name

    IMS POINTER CHE

  • Reported component ID

    5655E0900

  • Reported release

    220

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2009-09-17

  • Closed date

    2009-10-05

  • Last modified date

    2009-11-04

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

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

    UK50763

Modules/Macros

  •    FABKCOLL FABKGRUP FABKMGTB

Fix information

  • Fixed component name

    IMS POINTER CHE

  • Fixed component ID

    5655E0900

Applicable component levels

  • R220 PSY UK50763

       UP09/10/07 P F910

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.

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Document Information

Modified date:
03 April 2021

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