OA66273: IKJ56220I MAXIMUM NUMBER OF DATA SET ALLOCATIONS ALLOWED USING LOGICAL COPY ON GDG ZDMF/K

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• When using Logical Copy to migrate a GDG, all generations are
  copied under one task.  When are large number of generations
  and volumes are being processed, message IKJ56220I MAXIMUM
  NUMBER OF DATA SET ALLOCATIONS ALLOWED BY YOUR SESSION HAS BEEN
  REACHED can occur.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Migrating multiple large GDG files           *
  *                 simultaneously using zDMF Logical Copy       *
  *                 can cause the IKJ56220I error and a failed   *
  *                 migration.                                   *
  *                                                              *
  *                 SET_EATTR_OPT_ALL is not currently honored   *
  *                 using zDMF Logical Copy.                     *
  ****************************************************************
  * PROBLEM DESCRIPTION: 1. Failed zDMF Logical Copy migration   *
  *                         and message IKJ56220I indicating     *
  *                         that the number of allocations has   *
  *                         exceeded the limit for the job.      *
  *                      2. zDMF option SET_EATTR_OPT_ALL has    *
  *                         no effect on dataset allocation on   *
  *                         EAV volumes using zDMF Logical Copy. *
  ****************************************************************
  * RECOMMENDATION: Apply the PTF when available.                *
  ****************************************************************
  1. There is a limit to the number of datasets that can be
     allocated at one time, and a GDG can contain up to 255
     datasets.  If multiple GDGs are being processed
     simultaneously, the allocation limit can be exceeded,
     causing a failed migration and the IKJ56220I error message.
  2. In order to use the maximum space on an EAV volume, the
     zDMF option SET_EATTR_OPT_ALL option can be added to a zDMF
     group definition, but zDMF Logical Copy does not currently
     support this option.
  

Problem conclusion

• 1. Instead of holding the allocation of each GDG dataset until
     the end of the job, zDMF Logical Copy now deallocates each
     after the copy of the dataset completes.
  2. Support for the zDMF option SET_EATTR_OPT_ALL has been added
     to zDMF Logical Copy.
  

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:

  UJ94985

Modules/Macros

• GZDLOCO
  

Fix information

• Fixed component name

  ZDMF

• Fixed component ID

  ZDMF00001

Applicable component levels

• R341 PSY UJ94985

     UP24/04/04 P F404

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.