OA48795: DYNAMIC BUFFER ADDITION OCCURS MULTIPLE TIMES

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• If Dynamic Buffer Addition is initiated for an index component
  the buffer pool of the data component is extended.
  ADDITIONAL INFORMATION:
  This is being marked as HIPER because if a user has a seriously
  inadaquate number of buffers in the index pool, multiple occur-
  ances could use up a lot of storage with no benefit.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: ALL VSAM USERS WITH RELEASE HDZ2220, USING   *
  *                 LOCAL SHARED RESOURCES (LSR) AND HAVING A    *
  *                 REQUEST UNABLE TO OBTAIN AN INDEX BUFFER     *
  *                 NEEDED TO SATISFY THE REQUEST.               *
  ****************************************************************
  * PROBLEM DESCRIPTION: DYNAMIC BUFFER ADDITION OCCURS MORE     *
  *                      THAN ONCE, MSGIDA999I IS GENERATED      *
  *                      MULTIPLE TIMES AND MANY BUFFERS ARE     *
  *                      ADDED TO THE DATA COMPONENT BUFFER POOL *
  *                      WHEN NOT ENOUGH INDEX BUFFERS ARE       *
  *                      AVAILABLE TO SATISFY ALL REQUESTS.      *
  ****************************************************************
  * RECOMMENDATION: APPLY PTF.                                   *
  ****************************************************************
  WHEN ADDITIONAL BUFFERS ARE NEEDED TO PROCESS AN INDEX
  COMPONENT, BUFFERS ARE WRONGLY BEING ADDED FOR THE DATA
  COMPONENT INSTEAD. REPEATED ATTEMPTS TO OBTAIN ADDITIONAL INDEX
  BUFFERS RESULTS IN DYNAMIC BUFFER ADDITION BEING PERFORMED
  MULTIPLE TIMES BUT NO ADDITIONAL INDEX BUFFERS ARE CREATED.
  

Problem conclusion

• THE DYNAMIC BUFFER ADDITION PROCESS IS CORRECTED TO RECOGNIZE
  THE NEED FOR THE ADDITION OF INDEX COMPONENT BUFFERS AND ENSURE
  ADDITIONAL BUFFERS ARE ADDED TO THE CORRECT BUFFER POOL.
  

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:

  UA81291

Modules/Macros

• IFG0192A
  

Fix information

• Fixed component name

  DFSMS VSAM

• Fixed component ID

  5695DF106

Applicable component levels

• R220 PSY UA81291

     UP16/05/17 P F605 Ž

Fix is available

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