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:
Mar. 26, 2019
Filed:
Aug. 29, 2013
Hitachi, Ltd., Tokyo, JP;
The University of Tokyo, Tokyo, JP;
Hideomi Idei, Tokyo, JP;
Norifumi Nishikawa, Tokyo, JP;
Shinji Fujiwara, Tokyo, JP;
Kazuhiko Mogi, Tokyo, JP;
Kazuo Goda, Tokyo, JP;
Masaru Kitsuregawa, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
The University of Tokyo, Tokyo, JP;
Abstract
There is a storage apparatus which provides a storage area, comprises a cache memory, reads data into the cache memory from the storage area according to a read request and sends the data from the cache memory, and a computer is coupled to the storage apparatus. The computer receives a data processing request, determines an access usage based on the data processing request (or, the information relating to an access usage of the data processing request), selects a logical device corresponding to the determined access usage from a plurality of logical devices which are allocated to the storage area and issues a read request to the selected logical device.