HP XP20000XP24000 Disk Array - Manual (Page 21)

4 Performing LUSE Operations
Launching LUN Expansion (LUSE)
To launch LUN Expansion:
1. In the Remote Web Console main window, click Go, Volume Manager, and then LUN Expansion
on the menu bar.
The LUSE window appears. This window enables you to perform LUSE operations.
Note: To exit LUSE, click the Logout button in the upper-right corner of the Remote Web
Console main window, or end the Web browser.
If you are going to implement any changes for LUN Expansion, you must have modify permission for
LUN Expansion.
You can view the current LUSE configuration on the LUSE window (see
Figure 2 on page 17).
• The LDEV Information tree displays the CU and LDEV numbers installed on the storage system
in a hierarchical structure.
• The LDEV Detail table displays detailed information for all open-system LDEVs in the selected CU.
If you have selected a normal LDEV, the information in this section is for the top LDEV. If you have
selected a LUSE volume, the information in this table is for all of the LDEVs in the LUSE volume.
Note: An LDEV number that ends with a # indicates that the LDEV is an external volume (for
example, 00:00:01#). For details regarding external volumes, see HP StorageWorks XP24000
External Storage Software User’s Guide.
Note: An LDEV number that ends with a letter V indicates that the LDEV is a virtual volume
(V-VOL) (for example, 00:00:01V). For details regarding V-VOLs, see HP StorageWorks XP24000
Snapshot User’s Guide.
Viewing Concatenated Parity Groups
In the storage system, data can be written to an LDEV that extends over concatenated parity groups.
Concatenation of parity groups enables faster access to data.
To view a concatenated parity group:
1. Make sure that Remote Web Console is in Modify mode.
For detailed information about Modify mode, see the HP StorageWorks XP24000 Remote
Web Console User's Guide.
2. Select a CU number from the LDEV Information tree. The LDEV Detail table displays all LDEVs
in the selected CU.
3. In the LDEV Detail table, select and right-click the free LDEVs that you want to form the LUSE
volume. If parity groups are concatenated, this displays the Concatenation List pop-up menu.
Note : The Concatenation List command does not appear if the selected LDEV does not extend
over concatenated parity groups.
4. Select Concatenation List to display the Concatenation List dialog box (see Figure 3 on page 22).
5. When you are finished viewing the list, click OK (or Cancel) to return to the LUN Expansion tab.
XP24000 LUN Expansion User's Guide 21