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:
Feb. 15, 2011
Filed:
Mar. 23, 2006
Jun Takeuchi, Kawasaki, JP;
Toshitaka Yanagisawa, Kawasaki, JP;
Tetsuya Kinoshita, Kawasaki, JP;
Takashi Murayama, Kawasaki, JP;
Toshiaki Takeuchi, Kawasaki, JP;
Atsushi Shinohara, Kawasaki, JP;
Yusuke Kurasawa, Kawasaki, JP;
Jun Takeuchi, Kawasaki, JP;
Toshitaka Yanagisawa, Kawasaki, JP;
Tetsuya Kinoshita, Kawasaki, JP;
Takashi Murayama, Kawasaki, JP;
Toshiaki Takeuchi, Kawasaki, JP;
Atsushi Shinohara, Kawasaki, JP;
Yusuke Kurasawa, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
The fiber channel switch is capable of protecting data even if communication for adjusting reserves of access rights, which is performed by communication means, is interrupted. The fiber channel switch comprises: a plurality of connection terminals connected to a host computer and a physical storage unit via fiber channels; a storage virtualization unit producing a virtual storage unit; a first communication unit for communicating with another fiber channel switch; an access adjusting unit for adjusting an access reserve between the fiber channel switches; a unit for setting a master-slave relation between the fiber channel switches; a block control unit for blocking access between the host computer and the physical storage unit via the fiber channel switch if the fiber channel switch is set as a slave when the communication between the fiber channel switches is interrupted.