PM79675: PROVIDE AN OPTION TO REPORT THE INFORMATION ABOUT TWIN CHAIN.

Obtain the fix for this APAR.

APAR status

• Closed as new function.

Error description

• Provide an option to report the information about twin chain.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of IBM IMS High Performance Load   *
  *                 for z/OS Version 2 Release 1 (FMID=H1IM210). *
  ****************************************************************
  * PROBLEM DESCRIPTION: Provide an option to report the         *
  *                      information about twin chain.           *
  ****************************************************************
  * RECOMMENDATION: Apply the maintenance for this APAR.         *
  ****************************************************************
  This APAR provides an option to report the information about
  twin chain.
  

Problem conclusion

Temporary fix

Comments

• ========================
  = Documentation Change =
  ========================
  IMS High Performance Load for z/OS Version 2 Release 1 User's
  Guide SC18-9222-05 ( SC18922205 ) should be changed as follows:
  ================================================================
    2.1.5   Control statements
      :
  | 2.1.5.xx TWINSTAT control statement
  |
  |  Specifies whether to generate twin segment statistics report.
  |  Twin segment statistics report is a part of segment
  |  statistics report, and the twin segment statistics part
  |  provides further information about twin chain. For the
  |  details, see "Segment Statistics report" in topic 2.1.6.1.6.
  |  This specification is valid for HDAM, HIDAM, PHDAM, or
  |  PHIDAM. This control statement is optional. If you do not
  |  explicitly specify this control statement, TWINSTAT=NO will
  |  be used.
  |    _________________________________________________________
  |   |                                                         |
  |   |                 _NO___                                  |
  |   | >>__TWINSTAT=__|_YES__|______________________________>< |
  |   |                                                         |
  |   |_________________________________________________________|
  |
  |   NO
  |       Specifies that the twin segment statistics report not be
  |       generated.
  |
  |   YES
  |       Specifies that the twin segment statistics report be
  |       generated.
  |
  |       Note:
  |         When processing a HALDB with TWINSTAT=YES,
  |         PARTSTAT=YES is forced and statistics reports that
  |         include twin segment statistics part are generated for
  |         each partition.
  |
  |   Note:
  |     The default value of the TWINSTAT control statement can be
  |     changed. For details, see "Setting installation default
  |     option" in topic 6.1.
  
    2.1.6      Reports and statistics
    2.1.6.1    SYSPRINT data set
    2.1.6.1.6  Segment Statistics report
       :
  | This report consists of three parts; statistics on all
  | segments, variable-length segment statistics, and twin segment
  | statistics. The twin segment statistics part is shown only
  | when TWINSTAT=YES is specified.
    The following describes each item of the Segment Statistics
    report. The items are common to both HDAM and HIDAM databases.
  
    SEGNAME
       The name of the segment.
           :
           :
    COMPRESSION FACTOR
       The compression factor shown as a percentage. The
       compression factor is calculated by the following formula:
           :
  | The twin chain statistics part provides further information
  | about twin chained segments with the following items:
  |
  | SEGNAME
  |    The name of the segment.
  |
  | NUMBER OF CHAINS
  |    The total number of chains for the segment type.
  |    "N/A" is shown if twin pointer is not defined for the
  |    segment.
  |
  | MAX CHAIN LENGTH
  |       The maximum number of twin chain length
  |
  | AVG CHAIN LENGTH
  |       The average number of twin chain length
  
    6.0     REFERENCE
    6.1     SETTING INSTALLATION DEFAULT OPTIONS
    6.1.3   HPSROPT MACRO STATEMENTS
       :
     ____________________________________________________________
    |                                                            |
    | RELOAD:                                                    |
    |          <_,_____________________________________________  |
    | |__RELOAD_______________________________________________ |_|
    |            |_ ________________________________________ _|  |
    |            | |             _(__YES,WARN__)__________  | |  |
    |            | |            |             _WARN__     | | |  |
    |            | |_CHKTRAIL=__|_(__YES__,__|_ERROR_|__)_|_| |  |
    |            |              |_NO______________________|   |  |
                     :
                     :
    |            |_ _____________________ ____________________|  |
    |            | |              _NO__  |                    |  |
    |            | |_REPAIRILK=__|_YES_|_|                    |  |
  | |            |_ __________________________________________|  |
  | |            | |             _NO__  |                     |  |
  | |            | |_TWINSTAT=__|_YES_|_|                     |  |
    |            |_ __________________ _______________________|  |
    |              |           _YES_  |                          |
    |              |_WF1REC=__|_NO__|_|                          |
    |                                                            |
    |____________________________________________________________|
  
  
                     :
                     :
  ======================= End of Doc-Change ======================
  

APAR Information

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

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

  UK93612

Modules/Macros

• HPSRFCA0 HPSRHRPA HPSRHRPB HPSRHRP2 HPSRHRP3
  HPSRHRP7 HPSRHRP8 HPSRHRP9 HPSRHTBL HPSRMSGT HPSROPT  HPSROPTA
  HPSROPTS HPSRPTRA HPSRPTRB HPSRPTR2 HPSRPTR3 HPSRPTR7 HPSRPTR8
  HPSRPTR9 HPSRRCBM HPSRRCTA HPSRRDBD HPSRRIO0 HPSRRLDA HPSRRLDB
  HPSRRLD2 HPSRRLD3 HPSRRLD7 HPSRRLD8 HPSRRLD9 HPSRRMA0 HPSRRPAR
  HPSRRPRA HPSRRPRB HPSRRPR2 HPSRRPR3 HPSRRPR7 HPSRRPR8 HPSRRPR9
  HPSRRRI0 HPSRRRI9 HPSRRR05 HPSRRR06 HPSRRR08 HPSRSTMT
  

Fix information

• Fixed component name

  IMS HIGH PERF L

• Fixed component ID

  5655E0700

Applicable component levels

• R210 PSY UK93612

     UP13/04/23 P F304

Fix is available

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