PM67547: MSGDSNP031I MAXIMUM EXTENTS 251 REACHED WHEN EXTENDING DB2 PAGE SET WITH DSSIZE OR PIECESIZE GREATER THAN 64 GB

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• MSGDSNP031I MAXIMUM EXTENTS 251 REACHED WHEN EXTENDING DB2 PAGE
  SET WITH DSSIZE OR PIECESIZE GREATER THAN 64 GB.  MSGDSNP011I
  RC00D70014.
  

Local fix

• Suggest set DFSMS SMS Data Class Extent Constraint Relief field
  to YES, which removes 251-255 extent limit and supports up to
  7257 extents.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All DB2 users.                               *
  ****************************************************************
  * PROBLEM DESCRIPTION: Error message MSGDSNP031I or            *
  *                      MSGDSNP011I RC00D70014, maximum extents *
  *                      of 251 reached, is issued when          *
  *                      extending a DB2 data set associated     *
  *                      with the page set created with DSSIZE   *
  *                      (or PIECESIZE) 128 or 256 GB.           *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The current DB2 sliding scale algorithm is designed for page set
  with DSSIZE (or PIECESIZE) up to 64 GB.  The new size 128 and
  256 GB introduced in DB2 V10 may receive RC00D70014, maximum
  extents 251 reached during extend.  The error could be avoided
  if SMS Data Class Extent Constraint Relief is enabled as it
  allows maximum 7257 extents.
  

Problem conclusion

• DB2 sliding scale is changed to support 128 and 256 GB DSSIZE
  (or PIECESIZE).  It is for DB2 users who do not enable SMS Data
  Class Extent Constraint Relief feature provided by DFSMS.
  

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:

  UK82873

Modules/Macros

• DSNPDFN1 DSNPXTN0 DSNPXTRC DSNUGSPC
  

Fix information

• Fixed component name

  DB2 OS/390 & Z/

• Fixed component ID

  5740XYR00

Applicable component levels

• RA10 PSY UK82873

     UP12/11/08 P F211

Fix is available

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