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:
Sep. 22, 2015
Filed:
Aug. 06, 2012
Yoshiki Namba, Kanagawa-ken, JP;
Hiroyuki Nishikawa, Saitama-ken, JP;
Taichi Tashiro, Tokyo, JP;
Keiji Yamamoto, Tokyo, JP;
Kohta Nakamura, Tokyo, JP;
Yoshiki Namba, Kanagawa-ken, JP;
Hiroyuki Nishikawa, Saitama-ken, JP;
Taichi Tashiro, Tokyo, JP;
Keiji Yamamoto, Tokyo, JP;
Kohta Nakamura, Tokyo, JP;
Toshiba Corporation, Tokyo, JP;
Abstract
According to one embodiment, a controller for a storage apparatus is disclosed having interfaces connectable to a host system, a first storage apparatus and a second storage apparatus. A data in the first storage apparatus and a data in the second storage apparatus are duplicates. A status table stores the operating state regarding the first storage apparatus and the second storage apparatus, wherein the operating state indicates among writing, reading, or standing by. A monitor monitors the interfaces and set up the operating state into the status table. A buffer memory buffers the data for writing in the first storage apparatus and the second storage apparatus. A command response unit receives the data for writing and write-in request from a host system, and directs the writing of the data to the first storage apparatus and the second storage apparatus while making the buffer memory buffer the received data.