Determining The Number And Size Of Needed Partitions; Creating Cache Partitions; Recommended Individual Clpr Cache Size For External Storage On Open Systems; Recommended Individual Clpr Cache Size For External Storage On Hp Storage Virtualization Systems - HP StorageWorks XP12000 User Manual

Determining the number and size of needed partitions

The minimum cache partition (CLPR) size is 4 GB. Determine the size you need for each CLPR being used
for external storage based on the total capacity of the assigned external volumes.
recommended cache sizes for external storage CLPRs on open systems.
information for HP storage virtualization systems.
Table 6

Recommended individual CLPR cache size for external storage on open systems

External storage volume capacity assigned to CLPR Recommended cache size for CLPR
Less than 128,000 GB
128,000 GB or more
Table 7 Recommended individual CLPR cache size for external storage on HP storage virtualization
systems
External volume capacity assigned to CLPR
Less than 1 TB
1 TB <= capacity < 16TB
16 TB <= capacity < 20 TB
20 TB <= capacity < 128 TB
128 TB or more

Creating Cache partitions

Ensure the XP Disk/Cache Partition license is installed, you have Administrator authority on the array, and
you are in Modify mode in XP Remote Web Console. For more information about license keys and user
administration procedures, see the HP StorageWorks XP Remote Web Console user guide for
XP12000/XP10000/SVS200.
1. In XP Remote Web Console, click the Install button in the left pane.
2. Click the Partition Definition tab.
3. In the Cache Logical Partition tree, right-click SLPR0 (if you have additional storage partitions
configured, click the storage partition you want the CLPR to be created in), and select Create CLPR. The
new CLPR is added to the tree.
48 Managing cache with external storage
Table 7
4 GB
8 GB
CLPR0
4 GB
8 GB
12 GB
16 GB
24 GB
Table 6 shows the
shows the same
Additional CLPRs
4 GB
4 GB
4 GB
4 GB
8 GB