APAR status
Closed as program error.
Error description
There may be cases that a particular IO hit too many ENXIO errors returned by the FC adapter. Normally, that would result in an I/O failure and an undetermined disk error be logged. In the case of MPIO configurations, this APAR makes the code more robust and allows the PCM to route the I/O to another path for retry, rather than failing the I/O outright after multiple retries on a single path.
Local fix
Problem summary
In MPIO config, under certain error condition, I/O might fail even there are some good paths available
Problem conclusion
code is modified to retry the I/O in other paths
Temporary fix
Comments
APAR Information
APAR number
IV84821
Reported component name
AIX V7.1
Reported component ID
5765H4000
Reported release
710
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-05-15
Closed date
2016-08-02
Last modified date
2017-01-20
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 U872366
UP17/01/19 I 1000
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Document Information
Modified date:
20 April 2022