Method and system of replicating data using a recovery data...

Details Method and system of replicating data using a recovery data... Method and system of replicating data using a recovery data...

2004-02-27

2008-11-25

Lee, Wilson (Department: 2163)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000

Reexamination Certificate

active

07457830

ABSTRACT:
A method and system of replicating data using a recovery data change log. According to one embodiment a method is provided in which a copy of a data change log at a primary node is maintained at a data recovery node, the data change log being associated with a primary data volume of the primary node, a failure of the primary data volume is detected, and a secondary data volume of a secondary node is updated using the copy of the data change log in response to the detection.

REFERENCES:
patent: 7130974 (2006-10-01), Iwamura et al.
patent: 2003/0212789 (2003-11-01), Hamel et al.
patent: 2004/0193658 (2004-09-01), Kawamura et al.
patent: 2004/0260873 (2004-12-01), Watanabe
patent: 2005/0081091 (2005-04-01), Bartfai et al.
patent: 2006/0143238 (2006-06-01), Tamatsu

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