Continuous data protection of block-level volumes

Details Continuous data protection of block-level volumes Continuous data protection of block-level volumes

2008-03-25

2008-03-25

Nguyen, Hiep T. (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

Reexamination Certificate

active

07350043

ABSTRACT:
A continuous data protection system, and associated method, for point-in-time data recovery. The system includes a consistency group of data volumes. A support processor manages a journal of changes to the set of volumes and stores meta-data for the volumes. A storage processor processes write requests by: determining if the write request is for a data volume in the consistency group; notifying the support processor of the write request including providing data volume meta-data; and storing modifications to the data volume in a journal. The support processor receives a data restoration request including identification of the consistency group and a time for data restoration. The support processor uses the data volume meta-data to reconstruct a logical block map of the data volume at the requested time and directs the storage processor to make a copy of the data volume and map changed blocks from the journal into the copy.

REFERENCES:
patent: 6324654 (2001-11-01), Wahl et al.
patent: 6463501 (2002-10-01), Kern et al.
patent: 7003706 (2006-02-01), McBride et al.
patent: 2005/0028022 (2005-02-01), Amano
patent: 2005/0171979 (2005-08-01), Stager et al.
patent: 2005/0188258 (2005-08-01), Stager et al.
patent: 2005/0193244 (2005-09-01), Stager et al.
patent: 2005/0216788 (2005-09-01), Mani-Meitav et al.
patent: 2005/0240584 (2005-10-01), Patterson et al.
patent: 2006/0018505 (2006-01-01), Cherian et al.
patent: 2006/0041715 (2006-02-01), Ulrich et al.

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