User`s guide

Run the mpathadm list mpath-support command.
# mpathadm list mpath-support
mpath-support: libmpscsi_vhci.so
Select an mpath support name from the output list.
Run the mpathadm modify mpath-support -a [on | off] mpath-support-name command.
# mpathadm modify mpath-support -a off libmpscsi_vhci.so
Run the mpathadm show mpath-support mpath-support-name command to check the change.
# mpathadm show mpath-support libmpscsi_vhci.so
mpath-support: libmpscsi_vhci.so
Vendor: Sun Microsystems
Driver Name: scsi_vhci
Default Load Balance: round-robin
Supported Load Balance Types:
round-robin
logical-block
Allows To Activate Target Port Group Access: yes
Allows path Override: no
Supported Auto Failback Config: yes
Auto Failback: on
Failback Polling Rate (current/max): 0/0
Supported Auto Probing config: no
Auto Probing: NA
probing Polling Rate (current/max): NA/NA
Supported Devices:
Vendor: SUN
Product: T300
Revision:
Supported Load Balance Types:
round-robin
Vendor: SUN
Product: T4
Revision:
Supported Load Balance Types:
round-robin
Note – The auto-failback display initiated by the mpathadm modify command setting is eective
while the system is running. However, to keep the changed setting persistent, you must update
the /kernel/drv/scsi_vhci.conf le. Refer to
“Conguring Automatic Failback” on page 51.
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Administering Multipathing Devices
Chapter 3 • Administering Multipathing Devices Through mpathadm Commands 33