Is a
Patent attributes
Patent Applicant
0
Current Assignee
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takahiko Takeda0
Yusuke Hirakawa0
Hiroshi Arakawa0
Takao Sato0
Date of Patent
January 27, 2015
0Patent Application Number
140583320
Date Filed
October 21, 2013
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A first storage system stores information relating to the updating of data stored in that system as a journal. More specifically, the journal is composed of a copy of data that was used for updating and update information such as a write command used during updating. Furthermore, the second storage system acquires the journal via a communication line between the first storage system and the second storage system. The second storage system holds a duplicate of the data held by the first storage system and updates the data corresponding to the data of the first storage system in the data update order of the first storage system by using the journal.
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