HP StorageWorks XP Remote Web Console Software - Manual (Page 20)

20 Cache LUN XP for the XP10000/XP12000
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. Select the Multi Set / Release check box.
d. Click Set. A confirmation dialog box appears.
e. Click OK to continue. The Multi Set pane appears.
f. In the CU drop-down list, click the CU.
g. In the table, click more than one LDEV and then click Set. The Multi Set pane closes and the new
settings are shown in blue on the Cache LUN pane. To cancel operations, click Cancel. Go to
step 10 .
10. To make data in other volumes reside in the Cache LUN XP cache, repeat the previous steps.
NOTE: You cannot use the Release button to delete the set data until you click Apply or Cancel.
11. To enable the pre-staging function, select the Prestaging check box. To disable the pre-staging function,
clear the Prestaging check box.
12. If the settings are correct, click Apply. A confirmation dialog box appears.
13. Click OK to confirm. The Cache LUN XP operation begins. If prestaging was selected, the prestaging
operation will occur next. When the operation has been completed, a confirmation dialog box
appears.
14. Click OK.
Releasing (removing) a cache extent
1. In the LDEV tree of the Cache LUN pane, click the CU:LDEV number of the LDEV you want to remove
from cache. The LDEV table displays Cache LUN XP information about the LDEV you selected.
2. Select an extent to be removed from the Cache LUN XP cache. The Release button is enabled.
3. Complete one of the following steps:
• To remove specific data from cache, go to
step 4 .
• To remove all data from cache, go to step 5 .
4. To remove specific data from cache:
a. Click Release. A confirmation dialog box appears.
b. Click OK to continue. The new settings are shown in blue on the Cache LUN pane. To cancel
operations, click Cancel. Go to step 6 .
5. To remove all data from cache
a. Select the Multi Set / Release check box.
b. Click Release. A confirmation dialog box appears.