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. 28, 2017
Filed:
Jul. 28, 2015
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Tomohiko Muroyama, Yokohama, JP;
Tadashi Matsumura, Kawasaki, JP;
Noriyuki Yasu, Kawasaki, JP;
Motoki Sotani, Fuchu, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A storage device includes first and second data transceivers connected to an upper level device through first and second paths, respectively, and a third processor. The first data transceiver includes a first processor configured to perform an access control of a first logical memory group by executing first firmware. The second data transceiver performs an access control of a second logical memory group. The third processor is configured to change, when all of logical memories included in the first logical memory group are included in the second logical memory group, recommendation levels of the first path and the second path such that a first recommendation level of the first path is lower than a second recommendation level of the second path if the first recommendation level is higher than or equal to the second recommendation level, and update the first firmware when no data is flowing through the first path.