Patent ID: 7133282
Filing Date: 2006-11-07
Classification: G06F,G11B

Abstract:
1. A disk array device having a logic mounting unit and a memory device mounting packaging unit, the disk array device comprising: a fan for cooling each of said logic mounting unit and said memory device mounting unit; and a case body accommodating each of said logic mounting unit and said memory device mounting unit, wherein said logic mounting unit mounts: a channel controlling unit to which a higher-level device is connected and that performs data transfer control; a disk controlling unit to which a memory device is connected and that performs data transfer control; a cache memory into which data to be transferred between said higher-level device and said memory device is stored temporarily; a shared memory into which control information communicated by said channel controlling unit and said disk controlling unit is stored; and a connecting unit to which said channel controlling unit, said disk controlling unit, said cache memory, and said shared memory are connected, said memory device mounting unit mounts a plurality of said memory devices, a battery mounting unit that mounts a nickel hydrogen battery for supplying a backup power source at the time of a power failure is disposed at a lower portion of said case body, and said nickel hydrogen battery in said battery mounting unit disposed at the lower portion of said case body is cooled by natural convection of air inside said case body by said fan.