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OA48394: NEW FUNCTION - ZEDC PERFORMANCE

A fix is available

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APAR status

  • Closed as new function.

Error description

  • Provide improvement to CPU utilization when performing DFSMSdss
    DUMP with the ZCOMPRESS keyword, and during RESTORE of data
    compressed with zEDC Services.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of DFSMSdss DUMP with ZCOMPRESS    *
    *                 specified and DFSMShsm with SETSYS ZCOMPRESS *
    *                 requested.                                   *
    ****************************************************************
    * PROBLEM DESCRIPTION: It was determined that it was possible  *
    *                      to improve CPU utilization when         *
    *                      performing DFSMSdss DUMP with ZCOMPRESS *
    *                      or DFSMShsm MIGRATE when requesting the *
    *                      output be compressed using zEDC         *
    *                      Services.                               *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    

Problem conclusion

Temporary fix

Comments

  • DFSMSdss has been modified to improve CPU utilization during
    DUMP with ZCOMPRESS specified and RESTORE of data that was
    dumped with ZCOMPRESS specified.
    
    ZEDC/K
     KEYWORDS: ZEDC/K
    

APAR Information

  • APAR number

    OA48394

  • Reported component name

    DFSMSDSS, ISMF

  • Reported component ID

    5695DF175

  • Reported release

    210

  • Status

    CLOSED UR1

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    YesSpecatt / New Function

  • Submitted date

    2015-07-13

  • Closed date

    2015-09-16

  • Last modified date

    2015-10-02

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

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

    UA79040 UA79041

Modules/Macros

  • ADRDTDSC ADRFDSRL ADRGBUFF ADRSDMXI ADRSDMXO
    ADRSTEND ADRTDDS  ADRTDFP  ADRTDLOG ADRZBLK  ADRZVFYO
    

Fix information

  • Fixed component name

    DFSMSDSS, ISMF

  • Fixed component ID

    5695DF175

Applicable component levels

  • R210 PSY UA79040

       UP15/09/30 P F509

  • R220 PSY UA79041

       UP15/09/30 P F509

Fix is available

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Document information

More support for: z/OS family

Software version: 210

Operating system(s): z/OS

Reference #: OA48394

Modified date: 02 October 2015