Technical data

You can set units preferred to a specific controller, in which
case both controllers will be active.
If the bootdef_dev console environment variable ends up
with all boot paths in an unconnected state, you can use the
ffauto or ffnext console environment variables to force a
boot device from a not connected to a connected state.
The ffauto console environment variable is effective only
during autoboots (boots other than manual boots). Use
the set ffauto on console command to enable ffauto.
(The default for ffauto is off.) It is stored in non-volatile
memory and therefore persists across system resets and
power cycles.
During an autoboot, the console attempts to boot from
each connected device listed in the bootdef_dev console
environment variable. If ffauto is on, and if the end
of devices listed in bootdef_dev is reached without
successfully booting, the console starts again at the beginning
of devices listed in the bootdef_def console environment
variable. This time, devices that are not connected are
changed to connected and an attempt is made to boot from
that device.
The ffnext console environment variable is a one-time
variable. It does not persist across a system reset, power
cycle, or reboot. This variable may be used (set ffnext on)
to cause the next command to a not connected device to
change the state to connected. After the command has been
executed, the ffnext variable is automatically set to off,
so it has no further effect.
For more information on using the ffauto and ffnext
console environment variables, see the Wwidmgr User’s
Manual.
3. Set the bootdef_dev console environment variable for member system
1 boot disk to a comma-separated list of several of the boot paths that
show up as connected in the reachability display (wwidmgr -quickset
or wwidmgr -show reachability). You must initialize the system to
use any of the device names in the bootdef_dev variable as follows:
P00>>> set bootdef_dev \
dga131.1001.0.1.0,dga131.1004.0.1.0,\
dgb131.1002.0.2.0,dgb131.1003.0.2.0
POO>>> init
Using Fibre Channel Storage 6–73