OA42613: IST565I STORAGE UNAVAILABLE: VTAM PRIVATE AREA SUBPOOL 071

A fix is available

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • CPCP session from VTAM to a Windows 2000 Communications Server
    fail repetitively. The Windows 2000 Communications server is
    setting sense 08900060 for the session. This issue was corrected
    in Communications Server for windows with APAR JR16282. However
    VTAM should not run out of storage when this problem occurs.
    Storage was filled with RUMD control blocks.
    
    Messages being received were
    
    
    IST1097I  CP-CP SESSION WITH NETA.CPA
    TERMINATED
    IST129I  UNRECOVERABLE OR FORCED ERROR ON NODE CNR11111 - VARY
    INACT
    SCHED
    IST105I  CNR11111 NODE NOW
    INACTIVE
    IST871I  RESOURCE CNR11111
    DELETED
    IST1096I  CP-CP SESSIONS WITH NETA.CPA
    ACTIVATED
    IST1097I  CP-CP SESSION WITH NETA.CPA
    TERMINATED
    IST1280I  SESSION TYPE = CONLOSER  - SENSE =
    08900060
    IST314I
    END
    IST1097I  CP-CP SESSION WITH NETA.CPA
    TERMINATED
    IST1280I  SESSION TYPE = CONWINNER - SENSE =
    08900060
    IST314I
    END
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All using VTAM with CMIP (OSIMGMT=YES) or    *
    *                 NETVIEW for network management.              *
    ****************************************************************
    * PROBLEM DESCRIPTION: Private storage buildup in GETBLK pools *
    *                      UTILPVTL and RUPEPRIV.  The storage in  *
    *                      the UTILPVTL pool contains RUMD RUs,    *
    *                      used for the Netview/VTAM interface.    *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
      The problem can be summarized as follows:
    1. CS/NT or Windows 2000 Communications Server EN set up a CPCP
       session to VTAM.
    2. Netview tried to get management services data from the EN
       by sending 3 signals that are represented in VTAM storage
       by the ISTRUMDS control block with eyecatcher RUMD.
    3. The EN sent in bad data on the CPCP session that led to the
       CPCP session failing almost immediately with sense 08900060
       in message IST1280I.
    4. Timing in sending the management services data to the EN
       caused only 2 of the 3 RUMDs to be freed.
    5. The EN repeatedly sets up the CPCP session with RUMD storage
       being stranded by some the CPCP session setup/failure flows.
    
      The bad data being sent by the EN was corrected in
    Communications Server for windows with APAR JR16282. However
    VTAM should not run out of storage when this problem occurs.
    This APAR is to address the VTAM storage issue.
    
      The RUMDs could be left stranded during CPCP session
    deactivation for other reasons.  But, without a large number of
    CPCP session deactivations, the amount of storage growth would
    be hard to detect.
    

Problem conclusion

  •   ISTMTRCS has been changed to check the copied TP work queue
    for multiple work elements (RUMDs) when it processes a CP Status
    signal that indicates the CPCP sessions are inactive.
    

Temporary fix

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

Comments

APAR Information

  • APAR number

    OA42613

  • Reported component name

    VTAM V4 MVS/ESA

  • Reported component ID

    569511701

  • Reported release

    1D0

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-06-20

  • Closed date

    2013-07-19

  • Last modified date

    2013-09-17

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

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

    UA69973 UA69974 OA43396

Modules/Macros

  •    ISTMTRCS
    

Fix information

  • Fixed component name

    VTAM V4 MVS/ESA

  • Fixed component ID

    569511701

Applicable component levels

  • R1C0 PSY UA69973

       UP13/08/22 P F308

  • R1D0 PSY UA69974

       UP13/08/22 P F308

Fix is available

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Document information


More support for:

z/OS family

Software version:

1D0

Operating system(s):

z/OS

Reference #:

OA42613

Modified date:

2013-09-17

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