HP StorageWorks MSA 2/8 - SAN Switch Reference Manual page 348

Fabric OS Commands
Example
To force the failover of the active CP to the standbyCP in the switch:
switch:admin> hafailover
Local CP (Slot 6, CP1): Active
Remote CP (Slot 5, CP0): Standby, Failed
HA enabled, Heartbeat Up,
Warning: This command is being run on a control processor(CP) based system.
If the above status does not indicate
operation will cause the active CP to reset. This will cause disruption to
devices attached to both switch 0 and switch 1 and will require that existing
telnet sessions be restarted. To just reboot a logical switch on this system,
use command switchreboot(1M) on the logical switch you intend to reboot.
Are you sure you want to reboot the active CP [y/n]? Y
See Also
haDisable
haEnable
haShow
348
HA State Not in Sync
HA State synchronized then this
Fabric OS Version 3.1.x/4.1.x Reference Guide