Patent ID: 6385681
Filing Date: 2002-05-07
Classification: G06F

Abstract:
A disk array control device comprising:a plurality of channel interface units having an interface with a host computer; a plurality of disk interface units having an interface with a magnetic disk device; a cache memory unit for temporarily storing therein data being read/written with respect to said magnetic disk device; and a shared memory unit for storage of control information as to data transmission between the channel interface units and disk interface units and said cache memory unit, wherein each channel interface unit of said plurality of channel interface units executes data transfer between the interface with said host computer and said cache memory unit, each disk interface unit of said plurality of disk interface units executes data transfer between the interface with said magnetic disk device and said cache memory unit, and a connection system between said plurality of channel interface units and said plurality of disk interface units and said cache memory unit is different from a connection system between said plurality of channel interface units and said plurality of disk interface units and said shared memory unit.