Hp 200 Storage Virtualization System Manuel d'utilisateur télécharger pdf (Page 12)

Figure 1 Example of a CLPR

To create a CLPR, allocate the parity groups to CLPR. For instructions on allocating parity groups, see

Working with CLPRs.

To create and manage a CLPR, you need user authority for the array. For more information about user

authority, see Partition administration and administrator rights and the HP StorageWorks XP Remote Web

Console user guide for XP12000/XP10000/SVS200.

To manage cache memory using the functions in XP Cache LUN or Partial Cache Residence (PCR), you

can set up the cache area for XP Cache LUN and PCR in each CLPR. For more information, see the HP

StorageWorks XP Cache LUN user guide for the XP12000/XP10000/SVS200.

• Capacity criteria when creating a CLPR

If you create a CLPR, use the following formula to calculate the cache capacity allocated to the CLPR.

Cache capacity (GB) = Standard cache capacity (GB) + ↑ ((Cache Residency capacity (MB) +

PCR capacity MB))/2,048) ↑ x2GB

NOTE:

The PCR capacity (MB) described in the formula is the Partial Cache Residence capacity (MB). For

more information about standard cache capacity, see Table 2.

Overview of XP Disk/Cache Partition

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Hp 200 Storage Virtualization System Manuel d'utilisateur Page 12