A fix is available
APAR status
Closed as program error.
Error description
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: * Users of the AIX 7100-00 Technology Level with the vmo * tunable "numperm_global = 1" set. **************************************************************** * PROBLEM DESCRIPTION: * Paging of computational storage pages is occurring when a * high percentage of memory is being used for the file cache. **************************************************************** * RECOMMENDATION: * Install APAR IV26581. * Prior to APAR availability, interim fixes are available at: * ftp://public.dhe.ibm.com/aix/ifixes/iv26581/ * IV26581s07 for 7100-00-07 ****************************************************************
Problem conclusion
LRU processing changed to perform file only 4K page stealing when 64K page size is at maxpin condition and there are 4K file pages available to steal in the mempool.
Temporary fix
********* * HIPER * *********
Comments
6100-06 - use AIX APAR IV27655 7100-00 - use AIX APAR IV26581
APAR Information
APAR number
IV26581
Reported component name
AIX V7.1
Reported component ID
5765H4000
Reported release
710
Status
CLOSED PER
PE
NoPE
HIPER
YesHIPER
Submitted date
2012-08-20
Closed date
2012-08-20
Last modified date
2013-04-09
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
AIX V7.1
Fixed component ID
5765H4000
Applicable component levels
R710 PSY U851756
UP12/12/07 I 1000
PTF to Fileset Mapping
U851756 bos.mp64 7.1.0.21
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Document Information
Modified date:
09 April 2013