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:
Apr. 21, 2015
Filed:
Feb. 27, 2013
Fujitsu Limited, Kawasaki-shi, JP;
Yasuo Noguchi, Kawasaki, JP;
Toshihiro Ozawa, Yokohama, JP;
Kazuichi Oe, Yokohama, JP;
Munenori Maeda, Yokohama, JP;
Kazutaka Ogihara, Hachioji, JP;
Masahisa Tamura, Kawasaki, JP;
Ken Iizawa, Yokohama, JP;
Tatsuo Kumano, Kawasaki, JP;
Jun Kato, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A replication system includes N (>=3) storage devices and N nodes, connected to a host via a 1st network and connected to the N number of storage devices via a 2nd network, each to receive a request for accessing a storage device associated with itself and to have an access with a content in response to the received access request to the storage device, wherein when a node receives a write request of data from the host, each of M nodes (1<M<N) including the node stores the data in the storage device associated with itself, and if first data in a first storage device cannot be read out, the first data stored in another storage device is stored into a second storage device not stored with the first data by transmitting the first data via the second network.