HP XP External Storage Software - Manual (Page 65)

f. Repeat step 7b through step 7e until you have allocated the external storage groups to the
appropriate CLPRs according to the plan you created after reading
Partitioning cache for
external storage .
For complete information about creating SLPRs and CLPRs, see the HP StorageWorks XP Disk/Cache
Partition user guide.
Changing storage system modes
In addition to cache partitioning and cache modes, array system modes control LU cache usage.
HP service representatives can set the XP and SVS200 array system modes to adjust the array's
behavior.
For SVS200 arrays, no adjustments are needed.
For XP arrays, contact your HP account support representative to change the system modes if either
of the following is true:
• Your external LUs are used by XP or SVS200 data mirroring and data migration products such as
Business Copy XP, Snapshot XP, Auto LUN XP, or XP Tiered Storage Manager.
• You need cache enabled for external LUs.
External Storage XP user guide for the XP12000, XP10000, SVS200 65