Patent ID: 6981067
Filing Date: 2005-12-27
Classification: G06F,G11C,H04L

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