IBM Support

VM66430: ADD DISTILL OPTION TO DUMPLOAD

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

  • The "DISTILL" option is added to DUMPLOAD which will create an
    abridged CP dump on CMS space from a dump on spool space.
    
    Some dumps that CP creates include large structures (frame table
    and/or pageable PGMBKs) to aid diagnosis of memory management
    problems.  A new "DISTILL" option on DUMPLOAD extracts an
    abridged dump omitting these structures from a hard abend dump
    or snapdump on spool.  This smaller dump is easier to manage and
    faster to transmit to IBM, allowing diagnosis to begin sooner.
    The complete dump remains in spool and can be loaded and sent
    later if needed.
    

Local fix

  • N/A
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users that process z/VM CP dumps         *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    ****************************************************************
    * RECOMMENDATION: APPLY PTF                                    *
    ****************************************************************
    This Apar adds the DISTILL option to the DUMPLOAD utility and
    it can be used to create an abridged dump.  The abridged dump
    will contain a correlation table instead of the CP frame table
    and most page management blocks (PGMBKs) will be omitted.  You
    can then submit this abridged dump to IBM customer support for
    diagnosis.  This alleviates the problems and delays that can
    occur when you try to submit a very large hard abend dump or
    snap dump to IBM.
    
    The reduction in size of an abridged dump distilled from a dump
    taken using, for example, the SET DUMP FRMTBL YES PGMBKS ALL
    command, can be as much as 95%.  The original dump remains
    available as a spool file and can be loaded into a CMS file for
    transmission to IBM later, if necessary.
    
    The documentation for the DUMPLOAD CP utility has been updated.
    Also, the following CP messages are new:  HCP8186I, HCP8187I,
    and HCP8188I.
    

Problem conclusion

Temporary fix

  • FOR RELEASE VM/ESA CP/ESA R720 :
    PREREQ: NONE
    CO-REQ: NONE
    IF-REQ: NONE
    

Comments

  • For the latest z/VM PDF files, go to
    https://www.vm.ibm.com/library/index.html.
    
    -  z/VM 7.2 CP Commands and Utilities Reference (SC24-6268-08).
       Refer to new DISTILL option of DUMPLOAD utility.
    
    -  z/VM 7.2 CP Messages and Codes (GC24-6270-07).  Refer to new
       messages HCP8186I, HCP8187I, and HCP8188I.
    

APAR Information

  • APAR number

    VM66430

  • Reported component name

    VM CP

  • Reported component ID

    568411202

  • Reported release

    720

  • Status

    CLOSED UR1

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    YesSpecatt / New Function / Xsystem

  • Submitted date

    2020-08-10

  • Closed date

    2021-02-15

  • Last modified date

    2021-09-30

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

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

    UM35823

Modules/Macros

  • DUMPLOAD HCPDFIR  HCPEDB   HCPEDC   HCPEDG   HCPEDL   HCPEDM
    HCPEDMBK HCPEDO   HCPEDP   HCPEDR   HCPEDU   HCPEDV   HCPEDX
    HCPEDZ   HCPFRMTE HCPMES   HCPMESB  HCPSATBK HCP8186I HCP8187I
    HCP8188I
    

Publications Referenced
SC24626808GC24627007   

Fix information

  • Fixed component name

    VM CP

  • Fixed component ID

    568411202

Applicable component levels

  • R720 PSY UM35823

       UP21/02/23 P 2102  

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 2021