PM83704: CICS TS 5.1 REPORTS FALSE STORAGE NOTIFIES ( NO REAL SOS ) WHICH ARE DETECTED BY OMEGAMON AS 'TOTAL STORAGE NOTIFIES'

A fix is available

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • After conversion from CTS 4.1 to 5.1 we are now getting Storage
    Notifications showing in Omegamon/CICS. CICS stats show no SOS
    or
    programs being removed by compression.
    Previously on CTS 4.1 the storage notifications always showed as
    zero. For example "Total storage notifies  :      319 "
    OMEGAMON/CICS is "Tivoli Omegamon XE for CICS on z/OS"  5.1
    RSU1112 which does include the recommended CICS TS 5.1 fixes.
    
    .
    After a CICS TS 5.1 INITIAL start the CICS SMA field which
    contain these notify values is being incorrectly incremented:
    SMA_SYSTEM_TASK_NOTIFIES =1 and then after
    5 minutes elapses, it is incremented to
    SMA_SYSTEM_TASK_NOTIFIES=2 and these values are seen in OMEGAMON
    In CICS TS 4.1 SMA_SYSTEM_TASK_NOTIFIES is always zero ( unless
    a real notifiable storage condition exists).
    The problems appears to be in module DFHSMSY which
    sets SMA_SYSTEM_TASK_NOTIFIES  ( SMA + x'250')
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All CICS users                               *
    ****************************************************************
    * PROBLEM DESCRIPTION: CICS reports false storage notifies     *
    *                      even if there is no real SOS.           *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    In CICS TS 5.1, the SMSY task first gets suspended at start up,
    and it is resumed immediately, rather than suspend awaiting
    timeout or notification.
    

Problem conclusion

  • DFHS2PP has been changed so that the SMSY task on CICS
    initialization is not resumed immediately.
    

Temporary fix

  • FIX AVAILABLE BY PTF ONLY
    

Comments

APAR Information

  • APAR number

    PM83704

  • Reported component name

    CICS TS Z/OS V5

  • Reported component ID

    5655Y0400

  • Reported release

    800

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-02-27

  • Closed date

    2013-03-19

  • Last modified date

    2013-04-02

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

    PM78463

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

    UK92767

Modules/Macros

  •    DFHSMSY  DFHS2PP
    

Fix information

  • Fixed component name

    CICS TS Z/OS V5

  • Fixed component ID

    5655Y0400

Applicable component levels

  • R800 PSY UK92767

       UP13/03/29 P F303

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


More support for:

z/OS family

Software version:

5.1

Reference #:

PM83704

Modified date:

2013-04-02

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