An apparatus includes a controller and a plurality of disk drives. The controller has a communication control unit for accepting a data input/output request, a disk controller unit for controlling a disk drive, and a cache memory for temporarily storing data transferred between the communication control...http://www.google.es/patents/US7461203?utm_source=gb-gplus-sharePatente US7461203 - Disk array apparatus and method for controlling the same
Disk array apparatus and method for controlling the same
