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:
May. 17, 2011
Filed:
Feb. 02, 2010
Nobuhiro Maki, Yokohama, JP;
Katsuhisa Miyata, Yokohama, JP;
Masamitsu Takahashi, Chigasaki, JP;
Masahide Sato, Noda, JP;
Nobuhiro Maki, Yokohama, JP;
Katsuhisa Miyata, Yokohama, JP;
Masamitsu Takahashi, Chigasaki, JP;
Masahide Sato, Noda, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A computer system wherein, when a state of the primary host computer is in an active state, a data sent from the primary host computer to the first storage system is copied through a first copy route which includes a route from the first storage system to the second storage system and a route from the second storage system to the third storage system, wherein, if a failure occurs in the primary host computer and a state of the second host computer is to be in an active state, a data sent from the secondary host computer to the second storage system is copied through a second copy route which includes a route from the second storage system to the first storage system and a route from the first storage system to the third storage system.