Distributed storage array

Details Distributed storage array Distributed storage array

2008-05-20

2008-05-20

Lane, Jack (Department: 2185)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C707S793000

Reexamination Certificate

active

07376805

ABSTRACT:
Systems and methods for asynchronous backup of virtual disks in a distributed storage array are disclosed. An exemplary method may comprise receiving an IO stream at the virtual disks in the distributed storage array, writing data to one or more storage cells of the virtual disks in the distributed storage array, and logging completed writes in a first batch for each of the one or more storage cells. The method also comprises establishing a consistency point in the IO stream, terminating logging to the first batch for each of the one or more storage cells at the consistency point and logging completed writes after the consistency point to a new batch for each of the one or more storage cells. The method also comprises transferring writes logged in the first batch to at least one remote storage so that the at least one remote storage is crash consistent.

REFERENCES:
patent: 3984817 (1976-10-01), Barbour et al.
patent: 5504861 (1996-04-01), Crockett et al.
patent: 5682513 (1997-10-01), Candelaria et al.
patent: 5745693 (1998-04-01), Knight et al.
patent: 5754855 (1998-05-01), Miller et al.
patent: 5870537 (1999-02-01), Kern et al.
patent: 6035412 (2000-03-01), Tamer et al.
patent: 6148338 (2000-11-01), Lachelt et al.
patent: 6304980 (2001-10-01), Beardsley et al.
patent: 6662281 (2003-12-01), Ballard et al.
patent: 6728751 (2004-04-01), Cato et al.
patent: 6745303 (2004-06-01), Watanabe
patent: 6883065 (2005-04-01), Pittelkow et al.
patent: 6915315 (2005-07-01), Autrey et al.
patent: 6952737 (2005-10-01), Coates et al.
patent: 6961870 (2005-11-01), Chiu et al.
patent: 7003645 (2006-02-01), Knop et al.
patent: 7133983 (2006-11-01), Bartfai et al.
patent: 2002/0116661 (2002-08-01), Thomas et al.
patent: 2004/0250029 (2004-12-01), Ji et al.
patent: 2004/0250031 (2004-12-01), Ji et al.
Chandy, K. Mani, Lamport, Leslie, “Distributed Snapshots: Determining Global States of a Distributed System,” ACM Transactions on Computer Systems 3, 1 (Feb. 1985), 63-75.
Ji, Minwen, Veitch, Alistair, Wilkes, John, “Seneca: remote mirroring done write,” Proceedings of USENIX Technical Conference, Berkeley, CA, Jun. 2003, 253-268.
Frølund, “FAB: enterprise storage systems on a shoestring,” Published at the Nineth Workshop on Hot Topics in Operating Systems (HotOS IX), Hawaii, May 2003.

Affiliated with

Also associated with

Rating

Distributed storage array does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Distributed storage array, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Distributed storage array will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2786052