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:
Nov. 12, 2013
Filed:
Apr. 23, 2009
Kenji Sekine, Odawara, JP;
Tomoyuki Kato, Odawara, JP;
Kazuhide Sano, Fujinomiya, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
This invention proposes a computing system and a backup method capable of improving the backup efficiency. In accordance with copy requests from the host, the data written to the first logical volume in the first storage system is copied to the second logical volume in the first storage system, the data copied to the second logical volume is used to form a journal and is transferred to the second storage system asynchronously, with the writing of data from the host to the first logical volume. In the second storage system, the data transferred from the first storage system is written to the third logical volume in the second storage system.