HP StorageWorks XP48 - Disk Array, Owner'S Manual

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16 HP SureStore E Disk Array XP512/XP48: Owner’s Guide
Comparing the XP512 to the XP48
The XP512 and the XP48 are members of the same product family. The
main differences are in configuration capacities. Except as limited by the
configuration limitations, the XP512 and XP48 provide identical
functionality.
There are some additional differences. For example, the XP48 ACP is an
integral part of the XP48 and cannot be removed or interchanged. The
following table describes the differences between the XP512 and XP48
disk arrays.
Table 1. Comparing the XP512 to the XP48
Feature XP512 XP48
Power Single-phase or 3-phase Single-phase only
DKC/DKU One DKC
Up to 6 DKUs Single cabinet unit
only (no expansion)
Maximum hard
disk drives 512 48
Maximum spare
disk drives 16 4
Maximum parity
groups/subsystem 126 11
Maximum disk
drive capacity 37 TB 3.5 TB
Maximum cache 32 GB 16 GB
Cache expansion
board Yes No
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