Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shunji Kawamura0
Yoshiaki Eguchi0
Date of Patent
February 5, 2008
0Patent Application Number
115459900
Date Filed
October 10, 2006
0Patent Primary Examiner
Patent abstract
In a data processing system Saving a primary site and a secondary site, storage systems are connected to each other via a communication line, data update history is recorded in a storage device as a journal in the primary site, and the journal is transferred to the secondary site via the communication line. During such transfer, loads will not concentrate to a specific volume, by switching the volume that stores the journal in the primary site, while, by switching the transfer-destination volume of the journal in the secondary site.
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