HP StorageWorks Secure Path V3.0C for Linux and Linux Workgroup Edition Installation and Reference Guide (AA-RU7VD-TE, February 2004)

Managing Secure Path
78 Secure Path v3.0C for Linux and Linux Workgroup Edition Installation and Reference Guide
The set command
Syntax:
# spmgr set -a (on | off) [WWNN]
-b (on | off) [WWNN]
-p (on | off) [WWNN]
-f verify_period
# spmgr set -a on | off [WWNN]
This command enables or disables the Auto-Restore feature of the driver. When
Auto-Restore is enabled, it directs the driver to monitor the state of the paths. If
the preferred path should fail and then later return to service, the driver
automatically reroutes all I/O to the restored path. When Auto-Restore is disabled,
there is no Auto-Restore by the Secure Path driver. The I/O continues along the
current paths until another event changes the active path. The default is disabled.
# spmgr set -b on | off [WWNN]
This command enables or disables the Load Balancing option of the driver. When
Load Balancing is enabled, I/O is sent to the unit along all available paths. When
Load Balancing is disabled, the I/O is sent along the Preferred Path (if one is
selected) or uses the first available path for I/O. The default is disabled.
# spmgr set -p on | off [WWNN]
This command enables or disables the path verification of the driver. When
enabled, this command verifies the state of all possible paths to all units. On large
configurations with active I/O to many units, this command may reduce
performance. The default is enabled.
# spmgr set -f (1…65535 seconds)
This command sets the path verification interval. This interval can be set between
1 to 65535 seconds. The use of the -f switch does not change the current state of
the path verification. It will only change the value for the interval. Therefore, if
path verification is disabled, it remains disabled with the new interval. The default
is 30 seconds.