Patent ID: 7010623
Filing Date: 2006-03-07
Classification: G06F,G11C,H04L

Abstract:
1. A storage system comprising: a plurality of channel units that transfers data sent from an upper-level system and transfers data to said upper-level system; a plurality of cache units which are coupled to said plurality of channel units and in which data sent from said plurality of channel units is stored; a control unit that is coupled to said cache units, and transfers or receives data to or from said cache units; a disk device in which data sent from said control unit is stored; at least one first path coupling a first channel unit of said channel units to a first cache unit of said plurality of cache units; at least one second path coupling said first channel unit to a second cache unit of said plurality of cache units and not being in common with said first path; at least one third path coupling a second channel unit of said channel units to said first cache unit; and at least one fourth path coupling said second channel unit to said second cache unit and not being in common with said third path.