Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Reexamination Certificate
2007-10-02
2007-10-02
Kim, Matthew (Department: 2186)
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
Reexamination Certificate
active
10803815
ABSTRACT:
An information handling system for mirroring data, in a fashion that is similar to asynchronous mirroring, but less complex in function. Source data storage for storing and updating data is provided, with first intermediate data storage, target data storage, second intermediate data storage, and mirroring control. The mirroring control conducts first cyclic incremental flashcopy of the source data storage, the beginning of each first cyclic incremental flashcopy comprising a consistency point. The first cyclic incremental flashcopy comprises copying data to be mirrored to the first intermediate storage and synchronously mirroring the data to the second intermediate data storage. A second cyclic incremental flashcopy of the second intermediate data storage is conducted to the target data storage, the second cyclic incremental flashcopy beginning in response to completion of the first cyclic incremental flashcopy; the beginning of the second cyclic incremental flashcopy comprising commit of the consistency point.
REFERENCES:
patent: 6324654 (2001-11-01), Wahl et al.
patent: 6502205 (2002-12-01), Yanai et al.
patent: 6543001 (2003-04-01), LeCrone et al.
patent: 6549992 (2003-04-01), Armangau et al.
patent: 6611901 (2003-08-01), Micka et al.
patent: 7000145 (2006-02-01), Werner et al.
patent: 7120769 (2006-10-01), Yagawa et al.
patent: 2001/0047412 (2001-11-01), Weinman, Jr.
patent: 2002/0069369 (2002-06-01), Tremain
patent: 2002/0152362 (2002-10-01), Cochran
patent: 2002/0199058 (2002-12-01), Ofek
patent: 2003/0005355 (2003-01-01), Yanai et al.
patent: 2003/0014523 (2003-01-01), Teloh et al.
patent: 2003/0028723 (2003-02-01), Segev et al.
patent: 2003/0056038 (2003-03-01), Cochran
patent: 2003/0061399 (2003-03-01), Wagener et al.
patent: 2003/0061456 (2003-03-01), Ofek et al.
patent: 2003/0074600 (2003-04-01), Tamatsu
patent: 2004/0193816 (2004-09-01), Meiri et al.
patent: 2004/0260898 (2004-12-01), Stanley et al.
patent: 2004/0260899 (2004-12-01), Kern et al.
patent: 2006/0085610 (2006-04-01), Iwamura et al.
patent: 1647891 (2006-04-01), None
Dare Ryan A.
Holcombe John H.
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