Disk Control Frame; Dkc Clusters; Front And Rear Pcb Clusters In The Dkc - HP StorageWorks XP20000/XP24000 - Disk Array Owner's Manual

Hp storageworks xp24000/xp20000 disk array owners guide (ae131-96072, december 2009)

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Disk control frame

The DKC controls the disk array. It contains the control panel, connection hardware, power supplies,

SVP, and control boards for the disk array. It also contains up to 128 disk drives for the XP24000

and contains up to 120 disk drives for the XP20000.

As the following figure shows, power and PCBs in the DKC are organized into two independent and

redundant clusters. Clustering helps ensure that if power or a PCB associated with one cluster stops

operating, the power and PCBs associated with the other cluster can continue to operate and support

the disk drives.

Cluster 1 consists of the assemblies at the front of the DKC.

Cluster 2 consists of the assemblies at the rear.

Figure 5 Front and rear PCB clusters in the DKC

Hardware description of the HP XP24000/XP20000 Disk Array

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