A fix is available
APAR status
Closed as new function.
Error description
Raise the limit of RATIO on the ALTER GROUPBUFFERPOOL command from 255 to 1024, the default value of RATIO from 5 to 10.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: * * All Db2 12 for z/OS data sharing users of * * ALTER GROUPBUFFERPOOL command. * **************************************************************** * PROBLEM DESCRIPTION: * * The maximum setting for RATIO on the * * ALTER GROUPBUFFERPOOL command should * * be raised with the progressive trend * * for larger size group buffer pools. * **************************************************************** * RECOMMENDATION: * * Apply corrective PTF when available * **************************************************************** The maximum setting for RATIO on the ALTER GROUPBUFFERPOOL command is 255. With the progressive trend for larger size group buffer pools this limit should be raised too. The default of RATIO of 5 is also too small, especially for read intensive workloads.
Problem conclusion
Temporary fix
Comments
In this APAR, Db2 raises the limit of RATIO on the ALTER GROUPBUFFERPOOL command from 255 to 1024 and the default value of RATIO from 5 to 10. The documentations for the ALTER GROUPBUFFERPOOL command and messages DSNB800I and DSNB802I have been modified to reflect above changes. Please refer to ++HOLD DOC change for more information.
APAR Information
APAR number
PH13045
Reported component name
DB2 OS/390 & Z/
Reported component ID
5740XYR00
Reported release
C10
Status
CLOSED UR1
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2019-06-06
Closed date
2019-07-03
Last modified date
2019-08-01
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI64068
Modules/Macros
DSNB1AGB DSNB1GBS DSNB1CMD
Fix information
Fixed component name
DB2 OS/390 & Z/
Fixed component ID
5740XYR00
Applicable component levels
RC10 PSY UI64068
UP19/07/23 P F907
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.
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Document Information
Modified date:
01 August 2019