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. 29, 2013
Filed:
Jul. 25, 2008
Hidejirou Daikokuya, Kawasaki, JP;
Mikio Ito, Kawasaki, JP;
Kazuhiko Ikeuchi, Kawasaki, JP;
Chikashi Maeda, Kawasaki, JP;
Hideo Takahashi, Kawasaki, JP;
Yoshihito Konta, Kawasaki, JP;
Norihide Kubota, Kawasaki, JP;
Hidejirou Daikokuya, Kawasaki, JP;
Mikio Ito, Kawasaki, JP;
Kazuhiko Ikeuchi, Kawasaki, JP;
Chikashi Maeda, Kawasaki, JP;
Hideo Takahashi, Kawasaki, JP;
Yoshihito Konta, Kawasaki, JP;
Norihide Kubota, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A RAID apparatus includes a plurality of recording devices, a first adaptor connected to a first interface which is connected to a high-level apparatus, a controller for controlling processing of data transmitted by the high-level apparatus, and a second adaptor that connects to a second interface connected to a plurality of recording devices. The controller has a first memory area in which said data are stored, a second memory area used for a write-back of the data in said plurality of recording devices, a write-back information control unit controlling a write-back type of data stored in the first memory area and a usage state of the second memory area, a write-back data determination unit for determination of data to be written-back based on the write-back information, and a write-back execution unit for executing a write-back of the data to be written back on the plurality of recording devices.