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:
May. 29, 2012
Filed:
Aug. 19, 2008
Satoru Watanabe, Fuchu, JP;
Yoshio Suzuki, Kokubunji, JP;
Shinji Fujiwara, Sagamihara, JP;
Nobuo Kawamura, Atsugi, JP;
Satoru Watanabe, Fuchu, JP;
Yoshio Suzuki, Kokubunji, JP;
Shinji Fujiwara, Sagamihara, JP;
Nobuo Kawamura, Atsugi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
To generate backup data based on a log while a power consumption of a standby system is reduced, method for data backup is provided in which a first computer system transmits a data update record, a second storage system of a second computer system receives and then stores the data update record, and a second computer of the second computer system generates a copy of data contained in the first computer system based on the stored data update record. The method for data backup includes monitoring the data update record transmitted by the first computer system, and stopping, when a predetermined first condition is satisfied, the second computer; and starting, when a predetermined second condition is satisfied, the second computer, thereby generating the copy of the data contained in the first computer system based on the stored data update record.