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. 11, 2007
Filed:
Aug. 11, 2004
Applicant:
Kenichi Miki, Odawara, JP;
Inventor:
Kenichi Miki, Odawara, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 17/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention prevents erroneous control performed on the basis of volumes storing old data in cases where trouble occurs in remote copying. The storage system is constructed by connecting a first siteA and second siteB with networks CNand CN. Reference designating partsare disposed in respective host computersABand the like. In cases where trouble occurs in remote copying, the reference designating partsspecify and manage the site (volume) in which the most recent data is stored. As a result, failover or the like can be performed within a site that can utilize the most recent data following the occurrence of trouble in remote copying.