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. 30, 2014
Filed:
Jul. 22, 2011
Kazuo Nakashima, Kawasaki, JP;
Ryohei Nishimiya, Kawasaki, JP;
Fumio Hanzawa, Kawasaki, JP;
Masanori Ito, Kawasaki, JP;
Kazuhiro Hara, Kahoku, JP;
Kazuo Nakashima, Kawasaki, JP;
Ryohei Nishimiya, Kawasaki, JP;
Fumio Hanzawa, Kawasaki, JP;
Masanori Ito, Kawasaki, JP;
Kazuhiro Hara, Kahoku, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A storage system includes a storage and control units. In each of the control units: a relay unit relays access to the storage; an access controller accesses the storage through one of the relay unit in the control unit and the relay unit in another of the control units; and an operational-state controller determines whether or not the relay unit in the above-mentioned another control unit is usable when the operational-state controller detects occurrence of an abnormality in the above-mentioned another control unit, and makes the above-mentioned another control unit transition to a partially-operational state when the relay unit in the above-mentioned another control unit is usable. In the partially-operational state, at least the access controller in the above-mentioned another control unit is not in operation and the access controller in the control unit can access the storage through the relay unit in the above-mentioned another control unit.