HP XP Cache LUN Software - Manual (Page 14)

14 Cache LUN XP for the XP1024/XP128
Buttons
• Set: Creates a cache extent.
• Release: Deletes a cache extent.
• Apply: Applies the parameters to the disk array. You can then set or release other cache extents.
• Cancel: Cancels the operation.
Setting (creating) a cache extent
1. In the LDEV tree of the Cache LUN pane, click the CU:LDEV number of the LDEV you want to put in
cache.
The LDEV table displays Cache LUN XP information for the LDEV you selected.
2. Select an area to be made resident in the Cache LUN XP cache from one of those marked “-” in the
Mode column. The Set button is enabled. The From and To boxes display the selected area’s values.
3. Click Bind or Prio to indicate the mode.
4. Click Yes or No to indicate whether to set pre-staging.
5. Complete one of the following steps:
• To place all data on an LDEV into cache, go to
step 6 .
• To place specific data from an LDEV into cache, go to step 7 .
• To place all data on multiple LDEVs into cache, go to step 8 .
• To place specific data from multiple LDEVs into cache, go to step 9 .
6. To place all data on an LDEV into cache:
a. Select the Select All Area check box.
b. Clear the Multi Set / Release check box.
c. Click Set. A confirmation dialog box appears.
d. Click OK to continue. The new settings are shown in blue on the Cache LUN pane. To cancel
operations, click Cancel. Go to step 10 .
7. To place specific data from an LDEV into cache:
a. If the Select All Area check box is grayed out, go to the next step. If the Select All Area check box is
activated, clear the Select All Area check box.
b. Enter the starting and ending addresses (LBAs or CC HHs) of the area to be made resident in the
cache.
For open systems, Cache LUN XP identifies a logical area in units of 128 blocks for OPEN-V, and
96 blocks for other than OPEN-V. For OPEN-V, if you have entered 1 as the starting logical block
address and a value less than 128 as the ending logical block address, Cache LUN XP
automatically changes the ending block address to 128. For other than OPEN-V, if you have
entered 1 as the starting logical block address and a value less than 96 as the ending logical block
address, Cache LUN XP automatically changes the ending block address to 96.
c. Clear the Multi Set / Release check box.
d. Click Set. A confirmation dialog box appears.
e. Click OK to continue. The new settings are shown in blue on the Cache LUN pane. To cancel
operations, click Cancel. Go to step 10 .
8. To place all data on multiple LDEVs into cache:
a. Select the Select All Area check box.
b. Select the Multi Set / Release check box.
c. Click Set. A confirmation dialog box appears.