HPE XP7 User Manual page 147

Procedure
1. Open the Cache Residency window.
In Command View Advanced Edition:
1. On the Resources tab, expand the Storage Systems tree, right-click the target storage
system, and then select Other Functions.
2. In the displayed window, select Actions > Other Function > Cache Residency.
In Remote Web Console:
1. Click Actions > Other Function> Cache Residency to open the Cache Residency
window.
2. Click to change to Modify mode.
3. In the Cache Residency window, select the desired CLPR from the CLPR: list.
4. In the CU:LDEV tree, select the LDKC and the CU containing the desired LDEV, and then
select the desired LDEV.
The LDEV information table shows the information for the selected LDEV. A dash (-) in the
Mode column indicates an area not already allocated to Cache Residency cache.
5. Select an unallocated area in the LDEV information table as the area to place specific data
from one or more LDEVs into Cache Residency cache. The starting and ending addresses
of the selected area appear in the Start and End fields.
NOTE: For OPEN-V LUs, Cache Residency identifies a logical area in units of 512 blocks.
If you enter 0 or 1 as the starting LBA and a value less than 511 as the ending LBA, Cache
Residency automatically changes the ending block address to 511.
6. In the Cache Residency window, select options to apply to all selected LDEVs:
1. In the Cache Residency Mode box, select the desired mode (Bind or Priority).
2. Select the desired Prestaging Mode setting (Yes or No). To set the prestaging function,
the Prestaging check box must already be selected.
3. Verify the starting and ending addresses of the area to be placed in Cache Residency
cache in the Start and End fields. Edit as needed. Make sure that the Select All Area
box is NOT checked.
CAUTION:
changed after data is added to cache. To change between bind and priority modes, or
to enable and disable the prestaging function, release the cache area that you want to
change, and then place the data back into Cache Residency cache with the desired
settings.
7. If you do not want to apply the same options to any other LDEV, make sure that the Multi
Set / Release box is not checked, click Set, and then click OK on the confirmation dialog
box. The requested Cache Residency operation appears in blue in the LDEV information
table.
To apply the same options and data range to additional LDEVs:
Make sure to select the correct options, because the options cannot be
Managing cache-resident data 147