HP StorageWorks Performance Advisor XP Software user guide (T1789-96025, October 2007)

AAppendixA
Storage management logical partitions ( SLPRs)
A disk array can be shared with the multiple organizations and with multiple departments within an
enterprise. Therefore, multiple administrators might manage a s ingle disk array. This circumstance creates
the potential for a n administrator to destroy volumes of other organizations, and it can complicate and
incr ease the difficulty of managing the disk array.
Use Disk/Cache Partition to allocate all resources of one disk array (all ports and CLPRs) to virtual disk
arrays called SLPRs. You can create up to 31 S LPRs in one disk array. Ea ch virtual disk array c an be
accessed only by its administrator. This approach eliminates the risk of an administrator destroying
volumes from other organizations and of data leaks among organizations.
In a non-partitioned envi ronment, a full array is considered one single partition SLPR0. After the disk
array is partitioned, SLPR0 becomes the unpartitioned por tion of the disk a rray. Similarly, CLPR0 c ontains
all parity groups (PGs) and cache in the non-partitioned environment. After the disk array is partitioned,
CLPR0 contains the remaining PGs and cache that are not allocated to other CLPRs.
Figure 56 Example of an SLPR
Example of an SLPR shows an example of one disk array partitioned into two virtual disk arrays. Each
virtual d isk array is allocated to one enterprise. Enterprise A’s disk array administrator can manage
enterprise A’s virtual disk array, but cannot manage enterprise B’s disk array. Similarly, enterprise B’s
disk array administrator can manage enterprise B’s virtual disk array, but cannot manage enterprise A’s
disk array.
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