A fix is available
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 number
PM37647
Reported component name
DB2 OS/390 & Z/
Reported component ID
5740XYR00
Reported release
A10
Status
CLOSED UR1
PE
NoPE
HIPER
YesHIPER
Special Attention
NoSpecatt
Submitted date
2011-04-22
Closed date
2011-06-09
Last modified date
2011-07-05
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
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Document Information
Modified date:
05 July 2011