Patent ID: 7411787

Claim:
A storage control device which controls a storage device, comprising: M subjects for cooling including two or more groups of subjects for cooling, wherein one of said two or more groups of subjects for cooling includes m subjects for cooling of the same type (where m is a integer greater than or equal to 2, and M>m); and two or more cooling mechanisms which respectively correspond to said two or more groups of subjects for cooling, wherein each cooling mechanism of said two or more cooling mechanisms is a mechanism for cooling the subjects for cooling included in the corresponding group of subjects for cooling, and is independent from other cooling mechanisms of said two or more cooling mechanisms, wherein said two or more groups of subjects for cooling includes first, second, and third groups of subjects for cooling, wherein first subjects for cooling which are cooled by a first cooling mechanism corresponding to said first group of subjects for cooling are NAS head substrates or storage devices, wherein second subjects for cooling which are cooled by a second cooling mechanism corresponding to said second group of subjects for cooling are logical substrates which are separate from said NAS head substrates, wherein third subjects for cooling which are cooled by a third cooling mechanism corresponding to said third group of subjects for cooling are power supplies, wherein said storage control device is divided, from above to below, into a plurality of sections, wherein said plurality of sections includes: a first section in which a plurality of said NAS head substrates or said storage devices are mounted, a second section in which a plurality of said logical substrates are mounted, and a third section in which said power supplies are mounted, wherein said NAS head substrates are mounted horizontally in said first section, and wherein said first cooling mechanism sucks in air from the exterior of said storage control device via the front surface of said storage control device, and expels said sucked in air to the exterior of said storage control device from the rear surface of said storage control device.