HP Matrix Operating Environment Software - Manual (Page 68)

Redundancy
Multiple ports help performance and improve reliability through redundancy and failover
capability.
For redundancy checkboxes to become enabled, you must define two ports (one primary and
one secondary) in the Port Selection table.
• Check the Use Redundancy for all Storage Volumes for this Logical Server checkbox
if you want all volumes to implement redundancy, or
• Check the redundancy checkbox next to a specific volume to implement redundancy for
that volume.
Volume and path selection
A volume is a fixed disk drive on a disk array in a storage area network (SAN) that is not
necessarily mapped to a controller port. When a storage volume is mapped to a controller port,
it becomes addressable in the SAN as a logical unit number (LUN).
Entering storage port WWN and LUN values in the Volume & Path Selection table is optional
on this screen, but you must enter those values before you can activate the logical server. If you
do not enter the values on this screen, you can modify the storage entry for this logical server
later.
The Volume & Path Selection table allows you to enter the storage volume attributes for this
logical server.
1. Click the Add Volume button to on the right side of the screen to add a row to the Volume
& Path Selection
table.
2. Select a value from the Boot Volume drop-down menu. Select Yes if the volume is a boot
volume. Select No if the volume is a data volume.
3. Enter the size in GB for the storage volume. (Size is typically 10-30 GB.)
4. Select a RAID Level for the storage volume. The default is None.
5. Assign the port number to be the Primary boot path (and Secondary boot path, if you selected
Redundancy for the storage volume).
6. Obtain storage port WWNs and LUN identifiers corresponding to the server WWN for each
storage volume. (If these values are not readily available, you can save this storage entry
and use the Modify
→Logical Server... menu selection to add storage values later. The
storage port WWN and LUN identifier are required before you can activate the logical
server.)
7. Optional: Enter the storage port WWN for each server WWN. (This value must be entered
before the logical server can be activated.)
8. Optional: Enter the LUN identifier for each server WWN. (This value must be entered before
the logical server can be activated.)
9. Repeat steps 1 through 8 for each storage volume for this logical server.
68 Defining storage for logical servers