A fix is available
APAR status
Closed as program error.
Error description
Disk IO performance degradation when large number of SAS adapters are in the system.
Local fix
Problem summary
Disk IO performance degradation when large number of SAS adapters are in the system.
Problem conclusion
Kernel lock responsible for increasing contention as more adapters are added is removed.
Temporary fix
Comments
5300-10 - use AIX APAR IZ82596 5300-11 - use AIX APAR IZ82724 5300-12 - use AIX APAR IZ81623 6100-03 - use AIX APAR IZ80447 6100-04 - use AIX APAR IZ80445 6100-05 - use AIX APAR IZ78714 6100-06 - use AIX APAR IZ77290 6100-06 - use AIX APAR IZ77127 7100-00 - use AIX APAR IZ80370
APAR Information
APAR number
IZ82724
Reported component name
AIX 5.3
Reported component ID
5765G0300
Reported release
530
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Submitted date
2010-08-11
Closed date
2010-08-11
Last modified date
2013-03-28
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 5.3
Fixed component ID
5765G0300
Applicable component levels
R530 PSY U837688
UP10/09/20 I 1000
PTF to Fileset Mapping
U837688 devices.common.IBM.sissas.rte 5.3.11.4
[{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG11P","label":"APARs - AIX 5.3 environment"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"530","Edition":"","Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
28 March 2013