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

Hardware Setup
35Secure Path v3.0C for Linux and Linux Workgroup Edition Installation and Reference Guide
a. Configure the RAID system controllers for Multiple-bus Failover Mode,
if the controllers are in Transparent Failover Mode (see line 6 of the
example controller output). This procedure is documented in “Changing
from Transparent Failover to Multiple-bus Failover mode” on page 108.
In Transparent Failover Mode, under fabric configuration, both left-hand
ports share the same WWPN. Similarly, both right-hand ports share the
same WWPN. Set the preferred path, if desired, for each storage unit to
specify the controller that the unit will use upon the RAID system boot
time as follows:
Enter the following command to obtain a list of all units defined in the
RAID storage system:
CLI> show units full
Mirrored Cache: 24.
128 megabyte write cache, version 0012 25.
Cache is GOOD 26.
No unflushed data in cache 27.
Battery: 28.
NOUPS 29.
FULLY CHARGED 30.
Expires: 16-DEC-2001 31.