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
IZ77127
Reported component name
AIX 610 STD EDI
Reported component ID
5765G6200
Reported release
610
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Submitted date
2010-06-08
Closed date
2010-06-08
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:
IZ77290 IZ78714 IZ80370 IZ80445 IZ80447 IZ81623 IZ82596 IZ82724
Fix information
Fixed component name
AIX 610 STD EDI
Fixed component ID
5765G6200
Applicable component levels
R610 PSY U835933
UP11/05/10 I 1000
PTF to Fileset Mapping
U835933 devices.common.IBM.sissas.rte 6.1.6.15
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Document Information
Modified date:
28 March 2013