The following sections provide descriptions and illustrations of the HP XP7 disk array and its
components.
Figure 1 HP XP7 disk array
NOTE: Each Rack is 600mm wide without side covers. Add 5mm to each end of entire assembly
for each side cover.
Controller chassis
The controller chassis (factory designation DKC) includes the logical components, memory, disk
drive interfaces, and host interfaces. It can be expanded with a high degree of granularity to a
system offering up to twice the number of processors, cache capacity, host interfaces and disk
storage capacity.
The controller chassis includes the following maximum number of components: two service
processors, 512 GB cache memory, four grid switches, four redundant power supplies, eight
channel adapters, four disk adapters, and ten dual fan assemblies. It is mounted at the bottom of
Hardware overview 7
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