PH61920: IMPROVE ZIIP EXPLOITATION OF UNLOAD WITH SEQUENTIAL INPUT OR OUTPUT DATASETS

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• For unloads that handle a sequential dataset as an input or an
  output dataset, the zIIP exploitation should be enhanced, thus
  the regular CPU time consumption decreased, by exploiting the
  BSAM access method whenever possible.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of Db2 High Performance Unload for     *
  *                 z/OS                                         *
  ****************************************************************
  * PROBLEM DESCRIPTION: (HPU 5.2 only)                          *
  *                      For unloads that handle a sequential    *
  *                      dataset as an input or an output        *
  *                      dataset, the zIIP exploitation should   *
  *                      be enhanced, thus the regular CPU time  *
  *                      consumption decreased, by exploiting    *
  *                      the BSAM access method whenever         *
  *                      possible.                               *
  ****************************************************************
  * RECOMMENDATION: Apply the PTF                                *
  ****************************************************************
  improve zIIP exploitation of unload with sequential input or
  output datasets
  

Problem conclusion

• Code has been changed to fix this problem
  

Temporary fix

Comments

APAR Information

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

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

Modules/Macros

• INZ$$CCQ INZ$$PRM INZMQRY  INZPARM  INZTDSC  INZTOOLS INZTVAR
  INZUTIB1 INZUTIB2 INZUTILC INZUTILD INZUTILK
  

Fix information

• Fixed component name

  DB2 HI PERF UNL

• Fixed component ID

  5697F4400

Applicable component levels

• R520 PSY UI97541

     UP24/07/03 P F407

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.