A fix is available
APAR status
Closed as new function.
Error description
New function on DB2 11 for z/OS.
Local fix
n/a
Problem summary
**************************************************************** * USERS AFFECTED: All DB2 11 for z/OS users. * **************************************************************** * PROBLEM DESCRIPTION: Provide new function for users to * * measure the benefit of increasing * * the buffer pool size. * **************************************************************** * RECOMMENDATION: * **************************************************************** To aid users in determining the benefit of increasing buffer pool sizes, support for buffer pool simulation is introduced in this APAR. The ALTER BUFFERPOOL command is enhanced with the SPSIZE and SPSEQT options to allow users to create a simulated buffer pool. When a simulated buffer pool exists, pages that are stolen from the virtual buffer pool are tracked in the simulated buffer pool. With the simulated buffer pool, DB2 determines whether a read I/O could have been avoided if the virtual buffer pool had the additional buffers in the simulated buffer pool. The number of read I/Os that could have been avoided, as determined by the simulated buffer pool, is displayed in a new DSNB432I message when the DISPLAY BUFFERPOOL command is issued. There is also a new section for simulated buffer pool statistics in the IFCID 2 statistics record. Please see the HOLD DOC information in this APAR for more information about the messages added and modified by this APAR, the new options added to the ALTER BUFFERPOOL command, and the instrumentation changes. Additional search keywords: MSGDSNB404I MSGDSNB508I MSGDSNB522I MSGDSNB431I MSGDSNB432I MSGDSNB457I MSGDSNB547I MSGDSNB612I MSGDSNB613I MSGDSNB614I IFCID2 IFCID201 IFCID202
Problem conclusion
Temporary fix
Comments
APAR Information
APAR number
PI22091
Reported component name
DB2 OS/390 & Z/
Reported component ID
5740XYR00
Reported release
B10
Status
CLOSED UR1
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2014-07-15
Closed date
2014-10-31
Last modified date
2014-12-01
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI22679
Modules/Macros
DSNBDMPS DSNB1ABP DSNB1ABS DSNB1AES DSNB1BEP DSNB1BSD DSNB1BVP DSNB1CBP DSNB1CHK DSNB1CLM DSNB1CMD DSNB1CPF DSNB1CPP DSNB1DBP DSNB1DEP DSNB1DVP DSNB1EEP DSNB1GEP DSNB1GET DSNB1GIO DSNB1GRA DSNB1GWB DSNB1LRR DSNB1MBR DSNB1OPP DSNB1OPS DSNB1PCK DSNB1PMI DSNB1PM2 DSNB1RLS DSNB1RRR DSNB1SPF DSNB1TSD DSNB1WLM DSNB1WRA DSNB5PGB DSNB5RAP DSNB5RDP DSNB5WCS DSNDQBSP DSNDQDBP DSNDQWST DSNDQWS1 DSNDQW03 DSNFBDIR DSNFCDIR DSNIIEPL DSNKLFPR DSNWDFSH DSNWVZD1 DSNWZDG2 DSNXIC01 DSNXOTL DSNXOZAT DSN9SCNA HDBBB10J
SC19405400 | SC19406000 | GC19406200 |
Fix information
Fixed component name
DB2 OS/390 & Z/
Fixed component ID
5740XYR00
Applicable component levels
RB10 PSY UI22679
UP14/11/17 P F411
Fix is available
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Document Information
Modified date:
01 December 2014