Veritas Volume Manager 5.0.1 Administrator's Guide, HP-UX 11i v3, First Edition, November 2009

# vxdmpadm setattr arraytype A/A recoveryoption=default
The above command configures the default behavior, corresponding to
recoveryoption=nothrottle. The above command also configures the default
behavior for the response to I/O failures.
See “Configuring the response to I/O failures” on page 185.
Note: The I/O throttling settings are persistent across reboots of the system.
Displaying recovery option values
To display the current settings for handling I/O request failures that are applied
to the paths to an enclosure, array name or array type, use the following command:
# vxdmpadm getattr \
{enclosure enc-name|arrayname name|arraytype type} \
recoveryoption
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 Nothrottle[0] Queuedepth[60]
HDS9500-ALUA0 Error-Retry Fixed-Retry[5] Timebound[20]
This shows the default and current policy options and their values.
Table 3-1 summarizes the possible recovery option settings for retrying I/O after
an error.
Table 3-1
Recovery options for retrying I/O after an error
DescriptionPossible settingsRecovery option
DMP retries a failed I/O
request for the specified
number of times if I/O fails.
Fixed-Retry (retrycount)recoveryoption=fixedretry
DMP retries a failed I/O
request for the specified time
in seconds if I/O fails.
Timebound (iotimeout)recoveryoption=timebound
Table 3-2 summarizes the possible recovery option settings for throttling I/O.
Administering Dynamic Multipathing
Administering DMP using vxdmpadm
188