PM63574: DB2 INSTALLATION CHANGES TO SUPPORT INCREASE OF MAXIMUM IRLM LTE PARAMETER FROM 1024 TO 2048

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• The maximum size of the IRLM LTE parameter has been increased
  from 1024 to 2048.   DB2 installation changes need to be made
  to support that change.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of the installation CLIST for DB2  *
  *                 Version 9.1 for z/OS and DB2 10 for z/OS are *
  *                 affected by this change.                     *
  ****************************************************************
  * PROBLEM DESCRIPTION: IRLM APAR PM58723 (fixed by PTF UK77876 *
  *                      for IRLM 2.2 and UK77877 for IRLM 2.3)  *
  *                      has increased the maximum size for      *
  *                      coupling facililty lock structure table *
  *                      entries (LTEs) from 1024 MB to 2048 MB. *
  *                      This change needs to be supported by    *
  *                      the DB2 installation CLIST and panels.  *
  ****************************************************************
  * RECOMMENDATION: Apply the fixing PTF for this APAR.          *
  ****************************************************************
  DB2 for z/OS installation job DSNTIJMV provies an optional IRLM
  address space proc, IRLMPROC, that is customized by the DB2
  installation CLIST using entries gathered by DB2 installation
  panels DSNTIPI and DSNTIPJ.
  
  In particular, panel DSNTIPJ, field NUMBER OF LOCK ENTRIES
  collects the desired setting for the LTE parameter of IRLMPROC.
  The LTE parameter specifies the number of lock table entries
  that are to be in the coupling facility lock structure.
  
  IRLM APAR PM58723 has increased the maximum LTE size from 1048
  MB to 2048 MB.  See the fixing PTFs, UK77876 (for IRLM 2.2) and
  UK77877 (for IRLM 2.3) for additional information.
  
  The DB2 installation CLIST and panels need to be updated to
  support this change.
  

Problem conclusion

• This APAR modifies installation panel DSNTIPJ, increasing the
  maximum entry in the NUMBER OF LOCK ENTRIES field to 2048
  (megabytes).  The minimum and default entry both remain 0.
  

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:

  UK79829 UK79830

Modules/Macros

• DSN@XAZP DSNTIDXA DSNTIDXB DSNTIPJ  DSNTXAZP
  

Fix information

• Fixed component name

  DB2 OS/390 & Z/

• Fixed component ID

  5740XYR00

Applicable component levels

• RA10 PSY UK79829

     UP12/07/12 P F207

• R910 PSY UK79830

     UP12/07/12 P F207

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.