HP XP Racks - Manual (Page 178)

Procedure 19 To define LU paths
1. From the Storage Systems tree, click Ports/Hosts Groups. From the Actions menu, select Logical
Device, and then Add LUN Paths.
2. Select the desired LDEVs from the Available LDEVs table, and then click Add.
Selected LDEVs are listed in the Selected LDEVs table.
3. Click Next.
4. Select the desired host groups from the Available Host Groups table, and then click Add.
Selected host groups are listed in the Selected Host Groups table.
5. Click Next.
6. Confirm the defined LU paths.
•
To change the LU path settings, click Change LUN IDs and type the LUN ID that you want
to change.
•
To change the LDEV name, click Change LDEV Settings. In the Change LDEV Settings
window, change the LDEV name.
7. Click Finish.
8. In the Confirm window, confirm the settings, in Task Name type a unique name for this task
or accept the default, and then click Apply.
If Go to tasks window for status is checked, the Tasks window opens.
Setting a UUID
The Storage Administrator (Provisioning) role is required to perform this task.
You can set an arbitrary ID to identify a logical volume from the host using LUN Manager when
host mode option 33 is set to on. The ID is referred to as the UUID (user-definable LUN identifier)
and is typically composed of a Prefix and an Initial Number.
Note the following when setting a UUID:
•
If host mode 05 OpenVMS is used, the host mode option 33 is set to ON, LUs that do not
have UUID settings are inaccessible.
•
If host mode 05 OpenVMS is used with host mode option 33 set to OFF, LUs that have UUID
settings are inaccessible.
The following rules apply to setting a UUID:
•
These characters cannot be used for UUID: \ / : , ; * ? " < > |
•
A space character cannot be used as the first or the last character of a UUID.
•
UUID is case-sensitive. For example, Abc and abc are different UUIDs.
To keep track of device information, create a correspondence table similar to the example in
“Correspondence table for defining devices” (page 179) .
Procedure 20 To set a UUID
1. In the Remote Web Console main window, in the Storage Systems tree, select Ports/Host
Groups.
The list of available ports appears in the tree.
2. In the tree, select a port.
The host groups that correspond to the port appear in the tree.
3. In the tree, select a host group.
Information about the selected host group appears on the right side of the window.
178 Managing logical volumes