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OA50061: POTENTIAL DATALOSS WHEN USING QSAM TO WRITE TO A ZEDC COMPRESSEDDATASET AND THERE IS NO ROOM IN THE CURRENT EXTENT

A fix is available

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APAR status

  • Closed as program error.

Error description

  • During creation of a new extent during CLOSE processing, any
    user blocks that have not been compressed and written out to the
    zedc compressed dataset yet will not be written out.
    
    This does not apply to BSAM processing since all outstanding
    WRITE requests must be CHECK'd for completion before CLOSE is
    issued.
    
    zEDC/k
    

Local fix

  • ++APAR is available and requires an IPL
    
    Server:    testcase.boulder.ibm.com
    Directory: /fromibm/mvs
    DSN:       AA50061.HDZ1D10  (z/OS 1.13)
               BA50061.HDZ2210  (z/OS 2.1)
               CA50061.HDZ2220  (z/OS 2.2)
    DSORG:     PS
    RECFM:     FB
    LRECL:     80
    BLKSIZE:   32720
    
    Fix will remain on server for 5 days. Please contact Level2
    support if fix is not seen on server.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: Users writing to SAM extended format zEDC    *
    *                 compressed data sets using QSAM.             *
    ****************************************************************
    * PROBLEM DESCRIPTION: The potential exists for data loss      *
    *                      when writing to a zEDC compressed       *
    *                      data set using QSAM when CLOSE is       *
    *                      issued and there exists a partial       *
    *                      QSAM buffer that has not yet            *
    *                      been written, and all allocated         *
    *                      space in the data set is filled.        *
    *                      In this case the unwritten partial      *
    *                      buffer may not be written after         *
    *                      CLOSE processing obtains the new        *
    *                      extent for the data set.                *
    *                      The problem does not apply to           *
    *                      BSAM or other access methods.           *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    

Problem conclusion

  • Problem has been corrected
     KEYWORDS: ZEDC/K
    

Temporary fix

  • *********
    * HIPER *
    *********
    

Comments

APAR Information

  • APAR number

    OA50061

  • Reported component name

    BASE ACCESS MET

  • Reported component ID

    5695DF102

  • Reported release

    210

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2016-03-08

  • Closed date

    2016-03-24

  • Last modified date

    2016-05-03

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

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

    UA81134 UA81135 UA81136

Modules/Macros

  • IGG0201B
    

Fix information

  • Fixed component name

    BASE ACCESS MET

  • Fixed component ID

    5695DF102

Applicable component levels

  • RD10 PSY UA81134

       UP16/04/05 P F604 Ž

  • R210 PSY UA81135

       UP16/04/05 P F604 Ž

  • R220 PSY UA81136

       UP16/04/05 P F604 Ž

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 May 2016