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. 02, 2010
Filed:
Jul. 06, 2005
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 storage network system that can be kept running despite a failure in a host computer is provided. A computer system includes: first, second and third storage systems which store data and are connected to one another; a primary host computer connected to the first storage system; a secondary host computer connected to the second storage system; and a management portion which manages data transfer between the storage systems, in which the management portion sets the storage systems such that, while the primary host computer is in operation, data stored in the first storage system is transferred to the second storage system and data stored in the second storage system is transferred to the third storage system, and wherein the management portion sets the storage systems such that, while the secondary host computer is in operation, data stored in the second storage system is transferred to the first storage system and data stored in the first storage system is transferred to the third storage system.