PM90422: IFC ENHANCEMENTS

A fix is available

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You can track all active APARs for this component.

APAR status

  • Closed as new function.

Error description

  • Various IFC enhancements will be provided through this APAR.
    (DCR DK1748)
    

Local fix

  • N/A
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All DB2 users.                               *
    ****************************************************************
    * PROBLEM DESCRIPTION: Because dataset statistics in the       *
    *                      IFCID 199 record for a given dataset    *
    *                      are not extrenalized on every           *
    *                      statistics interval, it may be          *
    *                      challenging to keep track of what time  *
    *                      frame a given dataset statistics        *
    *                      section is covering given the existing  *
    *                      design. A better solution is needed.    *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    Dataset statistics in the IFCID 199 record are externalized only
    when a specific threshold for the usage of that dataset is
    met.  As a result, these statistics are not guaranteed to be
    externalized for every statistic interval.  Keeping track of
    when the last time statistics for a given data set were repprted
    can be a very difficult process for users and monitors, and a
    way to enable easier monitoring is needed.
    
    This issue exists only for IFCID 199 that are externalized as
    statistics records and not via IFI READS requests.
    

Problem conclusion

Temporary fix

Comments

  • New field QW0199SC has been added to the data section 3 of the
    IFCID 199.  This field contains the timestamp of the last time
    the corresponding dataset statistics were externalized. If this
    is the first time statistics for this dataset are externalized,
    this value is a timestamp of when this dataset was opened.
    

APAR Information

  • APAR number

    PM90422

  • Reported component name

    DB2 OS/390 & Z/

  • Reported component ID

    5740XYR00

  • Reported release

    A10

  • Status

    CLOSED UR1

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-06-04

  • Closed date

    2014-01-02

  • Last modified date

    2014-02-05

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

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

    UI13997 UI13998 UI13999

Modules/Macros

  • DSNB1DBP DSNB1OPP DSNB1TSD DSNDQW02 DSNWATGS
    

Fix information

  • Fixed component name

    DB2 OS/390 & Z/

  • Fixed component ID

    5740XYR00

Applicable component levels

  • RA10 PSY UI13997

       UP14/01/20 P F401

  • RB10 PSY UI13998

       UP14/01/20 P F401

  • R910 PSY UI13999

       UP14/01/20 P F401

Fix is available

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Document information


More support for:

DB2 for z/OS

Software version:

A10

Reference #:

PM90422

Modified date:

2014-02-05

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