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159Administering dynamic multipathing (DMP)
Administering DMP using vxdmpadm
Displaying recoveryoption values
The following example shows the vxdmpadm getattr command being used to
display the recoveryoption option values that are set on an enclosure.
# vxdmpadm getattr enclosure HDS9500-ALUA0 recoveryoption
ENCLR-NAME RECOVERY-OPTION DEFAULT[VAL] CURRENT[VAL]
===============================================================
HDS9500-ALUA0 Throttle Timebound[10] Queuedepth[60]
HDS9500-ALUA0 Error-Retry Fixed-Retry[30]Timebound[20]
This shows the default and current policy options and their values. The possible
option settings are summarized in the following table.
Recovery option Possible settings Description
Error-Retry settings:
recoveryoption=fixedretry
recoveryoption=timebound
Fixed-Retry (retrycount)
Timebound (iotimeout)
DMP retries a failed I/O
request for the specified
number of times if I/O fails.
DMP retries a failed I/O
request after the specified
time in seconds if I/O fails.
Throttle settings:
recoveryoption=nothrottle
recoveryoption=throttle
None
Queuedepth (queuedepth)
Timebound (iotimeout)
Not applicable
DMP throttles the path if
the specified number of
queued I/O requests is
exceeded.
DMP throttles the path if an
I/O request does not return
within the specified time in
seconds.