Remote copy synchronization in disaster recovery computer...

Details Remote copy synchronization in disaster recovery computer... Remote copy synchronization in disaster recovery computer...

2005-05-27

2008-11-11

Duncan, Marc (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S004110

Reexamination Certificate

active

07451345

ABSTRACT:
A method, storage system, and machine-readable medium for resynchronizing data stored among a first storage element and a second storage element of a remote copy pair of storage elements is disclosed. According to one embodiment, a method is provided which includes detecting a reestablishment of a remote copy relationship between the first and second storage elements and performing a resynchronization operation in response to this detection. Performing the resynchronization operation comprises transmitting data of a second change record associated with the second storage element to the first storage element, combining the second change record with a first change record associated with the first storage element, identifying a data segment of the second storage element utilizing the combined change record, and overwriting data of the first storage element with data of the identified data segment.

REFERENCES:
patent: 6167531 (2000-12-01), Sliwinski
patent: 6308284 (2001-10-01), LeCrone et al.
patent: 6480970 (2002-11-01), DeKoning et al.
patent: 6578120 (2003-06-01), Crockett et al.
patent: 6701455 (2004-03-01), Yamamoto et al.
patent: 7111189 (2006-09-01), Sicola et al.
patent: 7139851 (2006-11-01), Fujibayashi
patent: 7149919 (2006-12-01), Cochran et al.
patent: 0 405 859 (1991-01-01), None
patent: WO 97/45790 (1997-12-01), None

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