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:
Jul. 17, 2012
Filed:
Oct. 12, 2009
Sadahiro Nakamura, Fujisawa, JP;
Nobuyuki Saika, Yokosuka, JP;
Sadahiro Nakamura, Fujisawa, JP;
Nobuyuki Saika, Yokosuka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Proposed are a remote copy system and a remote copy control method capable of performing the operation of remote copy according to the user's usage status. Resource information representing a resource usage status is collected from a first storage apparatus installed at a primary site and a second storage apparatus installed respectively at one or more secondary sites, a transfer mode of differential data between snapshots to be transferred from the first storage apparatus to the second storage apparatus based on the collected resource information, and the first and second storage apparatuses are controlled so as to transfer the differential data from the first storage apparatus to the second storage apparatus based on the decided transfer mode.