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OA48620: DFSMSDSS COPY IS NOT SETTING F1DSCB FIELD DS1TRBAL FOR THE TARGET SINGLE STRIPED EXTENDED FORMAT SEQUENTIAL V2 DATA SET.

A fix is available

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APAR status

  • Closed as program error.

Error description

  • DS1TRBAL is not set correctly by DFSMSdss COPY processing when a
    multi volume single striped extended format sequential V2 data
    set is copied with Fastreplication / Flashcopy.
    
    This occurs whenever the last used track number for the extents
    on a target volume is larger than x'FFFF' (d'65535') tracks.
    The COPY process itself completes with RC0 CC0, but the target
    data set is corrupted.
    
    Note:
     For extended format data sets, the last used track and
     block on track is indicated by F1-DSCB fields DS1LSTAR &
     DS1TRBAL. DS1TRBAL contains the high order two bytes (TT)
     and DS1LSTAR contains the low order two bytes (TT) of
     the four-byte last used track number.
    

Local fix

  • specify DSS COPY keyword FR(NONE).
    
    Note: NONE specifies that fast replication should not be used.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All DFSMSdss users performing logical COPY   *
    *                 of single striped multi-volume version 2     *
    *                 extended format sequential data sets.        *
    ****************************************************************
    * PROBLEM DESCRIPTION: When performing a DFSMSdss logical      *
    *                      COPY, the DS1TRBAL may not be updated   *
    *                      correctly for single striped multi      *
    *                      volume extended format sequential       *
    *                      version 2 data set after using          *
    *                      fast replication ( Flashcopy ).         *
    *                                                              *
    *                      When the data set is copied using fast  *
    *                      replication and the target data set     *
    *                      exceeded 65,535 tracks on a single      *
    *                      volume, the data beyond the DS1LSTAR    *
    *                      may not be accessible.                  *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    

Problem conclusion

  • Fast replication of single striped multi volume extended format
    sequential version 2 data sets will be disabled.  It will later
    be enabled with APAR OA48754.
    
    If an attempt is made to process such data sets DFSMSdss will
    process the data set using a utility and prevent the use of fast
    replication.  If FASTREPLICATION(REQUIRED) is specified ADR938E
    will be issued and the copy will fail.
     KEYWORDS: FLASHCPY/K
    

Temporary fix

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

Comments

APAR Information

  • APAR number

    OA48620

  • Reported component name

    DFSMSDSS, ISMF

  • Reported component ID

    5695DF175

  • Reported release

    210

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2015-08-13

  • Closed date

    2015-08-28

  • 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:

    OA48754 UA78800 UA78801

Modules/Macros

  • ADRAMOVE
    

Fix information

  • Fixed component name

    DFSMSDSS, ISMF

  • Fixed component ID

    5695DF175

Applicable component levels

  • R210 PSY UA78800

       UP15/09/16 P F509

  • R220 PSY UA78801

       UP15/09/16 P F509

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:
02 October 2015