The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 27, 2015
Filed:
Aug. 08, 2012
Kazuhiko Ikeuchi, Kawasaki, JP;
Hidejirou Daikokuya, Kawasaki, JP;
Chikashi Maeda, Kawasaki, JP;
Norihide Kubota, Kawasaki, JP;
Atsushi Igashira, Yokohama, JP;
Kenji Kobayashi, Kawasaki, JP;
Ryota Tsukahara, Kawasaki, JP;
Kazuhiko Ikeuchi, Kawasaki, JP;
Hidejirou Daikokuya, Kawasaki, JP;
Chikashi Maeda, Kawasaki, JP;
Norihide Kubota, Kawasaki, JP;
Atsushi Igashira, Yokohama, JP;
Kenji Kobayashi, Kawasaki, JP;
Ryota Tsukahara, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A storage control apparatus manages a plurality of storage devices which belong to a RAID Logical Unit (RLU) such that data is made redundant between different storage devices, where RAID stands for Redundant Arrays of Independent Disks. If a first storage device fails, a rebuild controller executes a rebuild process to store the same data as recorded in the first storage device in a spare storage device. When the rebuild controller executing the rebuild process has failed in reading out data from a second storage device, a data recovery controller restarts the first storage device, and reads out data to be stored in the spare storage device from the restarted first storage device.