Patent ID: 6914784

Claim:
A cabinet, comprising: a plurality of rack mountable chassis, (A) a first one of such chassis having: (i) a memory disposed on a first memory printed circuit board; (ii) a plurality of directors; (a) a first portion of the plurality of the directors being disposed on a first director printed circuit board; (b) a second portion of the directors being disposed on a second director printed circuit board; (iii) a backplane, the first director printed circuit board and the second director printed circuit board being disposed in a back-to-back overlaying relationship, one end of the first director printed circuit board and one end of the second director printed circuit board being plugged into one side of the backplane, the first memory printed circuit board being plugged into an opposite side of the backplane; (B) a second one of such chassis having a plurality of disk drives; (C) first electrical conductors for connecting the disk drives in the second chassis to a portion of the directors in the first one of the chassis; (D) a third one of such chassis having: (i) a memory disposed on a second memory printed circuit board; (ii) a plurality of directors; (a) a first portion of the plurality of the directors being disposed on a third director printed circuit board; (b) a second portion of the plurality of the directors being disposed on a fourth printed circuit board; (iii) a second backplane, the third director printed circuit board and the fourth director printed circuit board being disposed in a back-to-back overlaying relationship, one end of the third director printed circuit board and one end of the fourth director printed circuit board being plugged into one side of the second backplane, the second memory printed circuit board being plugged into an opposite side of the second backplane; (E) a fourth one of such chassis having a plurality of disk drives; (F) second electrical conductors for connecting the disk drives in the fourth one of the chassis to a portion of the plurality of directors in the third one of the chassis; and (G) third electrical connectors for electrically the memory in the first one of the chassis and the memory in the third one of such chassis.