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:
Oct. 13, 2009
Filed:
Sep. 27, 2005
Noriyuki Sato, Kawasaki, JP;
Hideaki Tanaka, Kawasaki, JP;
Tatsuya Haga, Kawasaki, JP;
Shigeru Shimizu, Kawasaki, JP;
Takumi Kakuya, Kawasaki, JP;
Yuichi Hirao, Kawasaki, JP;
Masami Aihara, Kawasaki, JP;
Hiroaki Murai, Kawasaki, JP;
Masaki Obuchi, Kawasaki, JP;
Mitsuhiko Sugiyama, Kawasaki, JP;
Noriyuki Sato, Kawasaki, JP;
Hideaki Tanaka, Kawasaki, JP;
Tatsuya Haga, Kawasaki, JP;
Shigeru Shimizu, Kawasaki, JP;
Takumi Kakuya, Kawasaki, JP;
Yuichi Hirao, Kawasaki, JP;
Masami Aihara, Kawasaki, JP;
Hiroaki Murai, Kawasaki, JP;
Masaki Obuchi, Kawasaki, JP;
Mitsuhiko Sugiyama, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A disk storage device stores write data in a cache area of a data buffer according to a write command from a host, reports write completion to the host, and then writes the write data in the cache area to a storage medium. The disk storage device stores the write data stored in the data buffer in a save area created on the storage disk in response to the reception of a command which requires integrity, other than a write command, and reports a response to the host. Therefore processing time of this command and response time to the host can be decreased, while maintaining the safety of the write data.