PI10459: THIS APAR IS AN ENHANCEMENT FOR RUNNING HDPC FOR LARGE DBS IN THE ENVIRONMENT THAT HAS A LOT OF SMALL CAPACITY DASDS

Obtain the fix for this APAR.

APAR status

• Closed as new function.

Error description

• This APAR is an enhancement for running HD Pointer Checker
  (HDPC) for large databases in the storage environment where a
  lot of DASDs that works data sets are dynamically allocated are
  small in capacity.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: IBM IMS High Performance Pointer Checker for *
  *                 z/OS Version 3 Release 1 (FMID=HPC2310)      *
  *                 users who run HD Pointer Checker (HDPC) in   *
  *                 stand-alone (FABPMAIN) jobs.                 *
  ****************************************************************
  * PROBLEM DESCRIPTION: HP Pointer Checker is enhanced to       *
  *                      process a large number of databases or  *
  *                      HALDB partitions.                       *
  ****************************************************************
  * RECOMMENDATION: Apply the maintenance for this APAR.         *
  ****************************************************************
  This APAR provides the following enhancements:
  
  When HD Pointer Checker processes a large number of database
  resources that are databases or HALDB partitions, it requires
  large space for work data sets.
  This APAR provides the following enhancements to support the
  larger number of database resources.
  
  (1)Work data set dynamic allocation
  If 3390-3 DASD volumes are used, a lot of DASD volumes are
  required for allocating work data sets, because 3390-3 DASD has
  a small capacity.
  This APAR increases the number of DASD volumes at work datasets
  dynamic allocation. As the result, the maximum number of volumes
  is increased from 20 to 59 for work data set dynamic allocation.
  This changes is effective if the work datasets are dynamic
  allocated. So, this change is not effective if the work dataset
  DD statements are specified in HD Pointer Checker JCL.
  
  (2)Large format dataset
  To utilize large capacity DASD volumes effectively, this APAR
  supports Large format data set for work data sets.
  
  The work data set DD statements that are changed by (1) and (2)
  are MERGIN, MERGINnn, MERGI2,
  MERGI2nn, SORTE2, SORTE2nn, and IXKEY. (nn is numeric suffix)
  
  (3)Sort work data sets
  HD Pointer Checker calls sort program internally.
  This APAR increases the value of SORT parameter
  OPTION DYNALLOC=(,n).
  By increasing the value, the sort work data sets can be
  allocated on more DASD volumes when small DASD volumes are used.
  

Problem conclusion

Temporary fix

Comments

• The following modules and macros have been modified.
  
  FABPAWDS
  FABPEALC
  FABPESTM
  FABPPCTL
  FABPSTE0
  FABPUCB0
  FABPHPT
  FABPTPT
  

APAR Information

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

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

  UI15122

Modules/Macros

• FABPAWDS FABPEALC FABPESTM FABPPCTL FABPSTE0 FABPUCB0
  

Fix information

• Fixed component name

  IMS POINTER CHE

• Fixed component ID

  5655E0900

Applicable component levels

• R310 PSY UI15122

     UP14/02/15 P F402

Fix is available

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