Patent ID: 7509527
Filing Date: 2009-03-24
Classification: G06F

Abstract:
1. A disk array device comprising: central control parts controlling the whole disk array device; disk devices storing data; and interface control parts controlling interface to read/write data from/to said disk devices, wherein said central control parts, said disk devices, and said interface control parts have multiplexed configuration, a separation control part, when abnormality occurs in any of the central control parts, separating said central control part having the abnormality from the disk array device after write of operation information data thereof to said disk device is completed, and, wherein each of said central control parts has a first communication path reconfiguring part reconfiguring communication paths with said interface control parts when abnormality occurs therein, and wherein each of said interface control parts has a second communication path reconfiguring part reconfiguring a communication path with a central control part that has an abnormality when the abnormality in that central control part occurs.