Use the wwidmgr command to set up each device that you use
for booting or dumping. After you set up a device, the console retains the
information that is needed to access the device in nonvolatile memory.
Rerun the wwidmgr command if the system configuration
changes and the nonvolatile information is no longer valid.
- Display the WWIDs of all assigned storage unit volumes with the wwidmgr
-show wwid command.
- Determine which storage unit volume that you want to use as a boot
or dump device by decoding the serial number as described in Tru64 UNIX® UDID
hexadecimal representations .
- Assign a unit number with the wwidmgr -quickset -item i -unit u command,
where i is the wwidmgr item number and u is the
unit number you choose. You can find the item number inside the square brackets
of the output from the wwidmgr -show wwid command.
- Reinitialize the server with the init command.
When
you make changes with the wwidmgr command, they do not take effect
until the next system initialization.
- Use the show device command to verify that the system displays
the disk as console device DGAu, with the unit number that you defined.
After the initialization, the console show device command
displays each fibre-channel adapter followed by the paths through that adapter
to each of the defined fibre-channel disks. The path-independent OpenVMS device
name for each fibre-channel disk is displayed in the second column.
- Set the default boot device console variable, bootdef_dev,
to match the console device name of the boot disk. In a multipath environment,
use the asterisk (*) as a wildcard to make all boot paths available.
An example of the multipath command is set bootdef_dev DGAu.*, where u is
the unit number and * denotes all possible paths.