PM19034: NEW FUNCTION - ALLOW CHECK WITH SHRLEVEL CHANGE TO USE FASTREPLICATION(REQUIRED) WHEN INVOKING DSSCOPY

A fix is available

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APAR status

  • Closed as new function.

Error description

  • New Function - Allow CHECK with SHRLEVEL CHANGE to use
    FASTREPLICATION(REQUIRED) when invoking dssCopy
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All DB2 9 for z/OS and                       *
    *                 DB2 10 for z/OS users of                     *
    *                 CHECK utilities                              *
    ****************************************************************
    * PROBLEM DESCRIPTION: Add a zparm to control                  *
    *                      FASTREPLICATION keyword on DSSCOPY      *
    *                      command of CHECK utilities.             *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    CHECK utilities using SHRLEVEL CHANGE invoke DSSCOPY to copy
    shadow data sets on which the CHECK is performed. The copy
    command uses the FASTREPLICATION keyword. The options
    FASTREPLICATION(REQUIRED) and FASTREPLICATION(PREFERRED)
    are allowed.
    
    This APAR adds a new DB2 subsystem parameter called
    CHECK_FASTREPLICATION in DSN6SPRM for specifying the
    FASTREPLICATION setting for the CHECK utility.
    CHECK_FASTREPLICATION can be set to either PREFERRED or
    REQUIRED:
    
    * If you specify REQUIRED, the CHECK utilities force DSSCOPY to
      use fast replication, ensuring that object copies occur as
      quickly as possible, thus reducing the opportunity for
      resource contention and unavailability.  This option will
      cause CHECK to fail if Flash Copy cannot be used.
      ==> This is the default setting in DB2 V10.
    
    * If you specify PREFERRED, the CHECK utilities direct DSSCOPY
      to use fast replication only if Flash Copy support is
      available.
      ==> This is the default setting in DB2 V9.
    

Problem conclusion

Temporary fix

Comments

  • Add zparm to control FASTREPLICATION keyword for CHECK
    utilities with SHRELEVEL CHANGE.
    
    Please note that although this is a V9/V10 APAR, it does include
    a small V8 change. The APAR updates DSNADMIZ, the external
    module for the SYSPROC.ADMIN_INFO_SYSPARM stored procedure in
    DB2 V8, V9, and V10 so that it can report the setting for the
    new CHECK_FASTREPLICATION subsystem parameter. In DB2 data
    sharing, a SYSPROC.ADMIN_INFO_SYSPARM connection on any member
    of the group can query the subsystem, DECP and certain IRLM
    parameter settings of any other member of that group. In order
    to support V9 and V10 data sharing coexistence modes, the V8
    SYSPROC.ADMIN_INFO_SYSPARM must recognize the new
    CHECK_FASTREPLICATION subsystem parameter.
    
    Additonal Keywords: DFDSSCOPY DFSMSDSS
    

APAR Information

  • APAR number

    PM19034

  • Reported component name

    DB2 OS/390 & Z/

  • Reported component ID

    5740XYR00

  • Reported release

    910

  • Status

    CLOSED UR1

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2010-07-22

  • Closed date

    2010-12-16

  • Last modified date

    2011-02-01

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

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

    UK63215 UK63216

Modules/Macros

  •    DSN@XAZP DSNDQWPZ DSNDSPRM DSNTIDXA DSNTIDXB
    DSNTIJUZ DSNTINST DSNTIP6  DSNTXAZH DSNTXAZP DSNUKCPX DSNWZIFA
    DSNWZIF9
    

Fix information

  • Fixed component name

    DB2 OS/390 & Z/

  • Fixed component ID

    5740XYR00

Applicable component levels

  • RA10 PSY UK63215

       UP11/01/05 P F101

  • R810 PSY UK63216

       UP11/01/05 P F101

  • R910 PSY UK62437

       UP11/01/05 P F101

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:

DB2 for z/OS

Software version:

9.1

Reference #:

PM19034

Modified date:

2011-02-01

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