PM37647: EXTERNAL ENABLEMENT FOR PM24723 (IFCID 225 REAL STORAGE STATISTICS ENHANCEMENTS)

Obtain the fix for this APAR.

APAR status

• Closed as new function.

Error description

• External enablement for APAR PM24723 (IFCID 225 REAL STORAGE
  STATISTICS ENHANCEMENTS)
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All DB2 users.                               *
  ****************************************************************
  * PROBLEM DESCRIPTION: This APAR provides enablement for APAR  *
  *                      PM24723: IFCID 225 real storage         *
  *                               statistics enhancements        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  APAR PM24723 provides enhancements to DB2 trace records to
  facilitate monitoring of real storage.  This APAR provides
  enhancements for managing real storage used by DB2.
  

Problem conclusion

Temporary fix

• *********
  * HIPER *
  *********
  

Comments

• Real storage consumption for a given DB2 subsystem
  can now be controlled via 2 system configuration
  parameters.
  
  REALSTORAGE_MANAGEMENT
  
  This parameter will tell DB2 how to manage
  real frames that are backed but are not being
  used by the system. With this parameter set to
  ON, unused backed real frames will be discarded
  when possible. When this parameter is set to
  OFF, DB2 will only unback unused frames when
  critical real storage or auxiliary storage usage
  is detected.  When this parameter is set to AUTO,
  DB2 will unback unused frames when the system
  begins to page. The default for this parameter
  is AUTO.
  
  New messages DSNV516I and DSNV517I will be
  written when DB2 enters and exits real storage
  contraction mode as controlled by
  REALSTORAGE_MANAGEMENT.
  
  
  REALSTORAGE_MAX
  
  This parameter will bound this DB2 subsystem
  to the amount of GB of real and auxiliary storage
  specified in this parameter.  DB2 will terminate
  if this threshold is reached.
  
  New message DSNS003I will be written when DB2
  approaches the threshold specified by
  REALSTORAGE_MAX.  New message DSNS004I will be
  written to indicate relief from this condition.
  

APAR Information

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

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

  UK68659

Modules/Macros

• DSN@XAZP DSNDQWPZ DSNDSPRM DSNTIDXA DSNTIDXB
  DSNTIJUZ DSNTINST DSNTXAZH DSNTXAZP DSNWZIFA DSNZOVTB DSN6SPRC
  DSN6SPRM
  

Fix information

• Fixed component name

  DB2 OS/390 & Z/

• Fixed component ID

  5740XYR00

Applicable component levels

• RA10 PSY UK68659

     UP11/06/28 P F106

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.