| US 7,509,527 B2 | ||
| Collection of operation information when trouble occurs in a disk array device | ||
| Takashi Kawada, Kawasaki (Japan); Kazuo Nakashima, Kawasaki (Japan); and Osamu Kimura, Kawasaki (Japan) | ||
| Assigned to Fujitsu Limited, Nakahara-Ku, Kawasaki-Shi, Kanagawa (Japan) | ||
| Filed on Jan. 31, 2005, as Appl. No. 11/45,105. | ||
| Claims priority of application No. 2004-291732 (JP), filed on Oct. 04, 2004. | ||
| Prior Publication US 2006/0075416 A1, Apr. 06, 2006 | ||
| Int. Cl. G06F 11/00 (2006.01) | ||
| U.S. Cl. 714—13 [714/9] | 9 Claims |
| 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.
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