HP XP Array Manager Software - Manual (Page 28)

The Operations box has the following features:
Description Item
Select the mode for the data to be added to Cache
Residency cache:
•
Bind sets bind mode.
Note: The Cache Residency bind mode is not available
to external volumes whose Cache mode is set to Disable
(which is the mode that disables the use of the cache
when there is an I/O request from the host).
•
Priority sets priority mode.
Once you have requested a Cache Residency Manager
operation, the mode buttons become disabled. If you want
to change the mode for a requested operation, you must
cancel the requested operation and request the operation
again with the desired mode selected.
Cache Residency Mode
Enables or disables the pre-staging mode:
•
Yes enables pre-staging mode for the requested
operations. The pre-staging operation will be performed
if you select Yes and click Apply.
• No disables pre-staging mode for the requested
operations.
The Pre-staging Mode buttons are disabled when the
Pre-staging checkbox (above the CU:LDEV tree) is not
checked.
Once you have requested a Cache Residency operation,
the Pre-staging Mode buttons become disabled. If you want
to change the mode for a requested operation, you must
cancel the requested operation and request the operation
again with the desired mode selected.
Pre-staging Mode
Enter the starting and ending addresses for the data to be
placed in cache, specified in LBAs for open-systems LDEVs,
and in CC HH numbers for mainframe LDEVs.
For OPEN-V LUs, logical areas are defined 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 LBA value to 511.
Start and End
Selects all data areas in the selected LDEV for Cache
Residency cache. This check box can only be selected if
no data areas in the selected LDEV are assigned to Cache
Residency cache.
If you check the Select All Area box, the starting address
and ending address (From and To) fields are cleared.
Select All Area
Cache size available for Cache Residency data:
•
Bind displays the available size for bind mode.
• Priority displays the available size for priority mode.
Available Cache Residency Size
28 Using the Cache Residency Manager GUI