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:
Feb. 03, 2009
Filed:
Aug. 31, 2005
Yoshihito Konta, Kawasaki, JP;
Hideo Takahashi, Kawasaki, JP;
Hiroaki Ochi, Kawasaki, JP;
Yasutake Sato, Kawasaki, JP;
Tsukasa Makino, Kawasaki, JP;
Norihide Kubota, Kawasaki, JP;
Mikio Ito, Kawasaki, JP;
Hidejirou Daikokuya, Kawasaki, JP;
Kazuhiko Ikeuchi, Kawasaki, JP;
Shinya Mochizuki, Kawasaki, JP;
Yoshihito Konta, Kawasaki, JP;
Hideo Takahashi, Kawasaki, JP;
Hiroaki Ochi, Kawasaki, JP;
Yasutake Sato, Kawasaki, JP;
Tsukasa Makino, Kawasaki, JP;
Norihide Kubota, Kawasaki, JP;
Mikio Ito, Kawasaki, JP;
Hidejirou Daikokuya, Kawasaki, JP;
Kazuhiko Ikeuchi, Kawasaki, JP;
Shinya Mochizuki, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A magnetic disk apparatus capable of effectively achieving speedup of the response to a read request, a control method and control program therefore are provided. In a control of a magnetic disk apparatus having a RAID configuration in which the same data is written on two disks, a given algorithm is selected from a plurality of different algorithms with respect to the data stored in the disks, read commands are issued to the data stored in the two disks, respectively, according to the selected algorithm and the data that has been read first by the read commands that has been issued to the two disks in a read command issuance step is adopted as read data.