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:
Aug. 21, 2012
Filed:
Apr. 06, 2010
Hiroshi Arakawa, Sagamihara, JP;
Kenta Ninose, Yokohama, JP;
Yoshihiro Asaka, Odawara, JP;
Yusuke Hirakawa, Odawara, JP;
Hiroshi Arakawa, Sagamihara, JP;
Kenta Ninose, Yokohama, JP;
Yoshihiro Asaka, Odawara, JP;
Yusuke Hirakawa, Odawara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A remote copy system includes a plurality of storage systems. Each first storage system assigns a sequential number to write data received from the host and sends the write data with the sequential number to the second storage system. One of the first storage systems defers the processing of the write request received from the host and instructs each of the first storage systems to create a marker that includes a sequential number that is a marker number. The second storage systems receive the marker from the first storage system and store the marker number included in the marker.