Filter
Top Products
To reset the bootdef_dev console environment variable, follow these steps:
1. Obtain the device name and worldwide name for the Fibre Channel unit
from where you will boot cluster member system 1 (see Table 6–2).
2. Check the reachability display (Example 6–5) provided by the wwidmgr
-quickset or the wwidmgr -reachability commands for the device
names that can access the storage unit from which you are booting.
Check the show dev command output to ensure the device name may
be assigned to the bootdef_dev console environment variable.
____________________ Notes ____________________
You should choose device names that show up as both Yes
and No in the reachability display connected column. Keep
in mind, that for multiple-bus failover, only one controller is
normally active for a storage unit. You must ensure that the
unit is reachable if the controllers have failed over.
If you have multiple Fibre Channel host bus adapters, you
should use device names for at least two host bus adapters.
For example, to ensure that you have a connected boot path
in case of a failed host bus adapter or controller failover,
choose device names for multiple host bus adapters and each
controller port. For example, if you use the reachability
display shown in Example 6–5, you could choose the following
device names when setting the bootdef_dev console
environment variable for the first cluster member system:
dga131.1004.0.1.0 1
dgb131.1002.0.2.0 2
dgb131.1003.0.2.0 3
dga131.1001.0.1.0 4
1 Path from host bus adapter A to controller A port 1
2 Path from host bus adapter B to controller A port 2
3 Path from host bus adapter B to controller B port 1
4 Path from host bus adapter A to controller B port 2
You can set units preferred to a specific controller, in which
case both controllers will be active.
3. Set the bootdef_dev console environment variable for member system
1 boot disk to a comma-separated list of several of the boot path(s) that
show up as connected in the reachability display (wwidmgr -quickset
6–54 Using Fibre Channel Storage