Data I/O system using a plurality of mirror volumes

Details Data I/O system using a plurality of mirror volumes Data I/O system using a plurality of mirror volumes

2007-05-08

2007-05-08

Bragdon, Reginald (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S161000

Reexamination Certificate

active

10884693

ABSTRACT:
A data I/O system comprises a plurality of storage devices and a controller which controls the storage devices. In the data I/O system, the controller further includes a read/write unit, responsive to the subsequent receipt of a read request and a write request, for reading data stored in the storage devices and writing data in the storage devices, a logical volume management unit for mapping between a logical image of the data storage of a host processor (logical volume) and an actual space in the storage devices, a volume management unit for managing an active primary production volume (P-VOL) and second multiple mirror volumes (S-VOL) created as mirror images of the primary volume, and an S-VOL restoring unit for restoring the data of a first S-VOL with the data of a second S-VOL depending on the type of an error that happens in the first S-VOL.

REFERENCES:
patent: 5889935 (1999-03-01), Ofek et al.
patent: 5893139 (1999-04-01), Kamiyama
patent: 6044444 (2000-03-01), Ofek
patent: 6101497 (2000-08-01), Ofek
patent: 6173377 (2001-01-01), Yanai et al.
patent: 6199074 (2001-03-01), Kern et al.
patent: 6363462 (2002-03-01), Bergsten
patent: 6820180 (2004-11-01), McBrearty et al.
patent: 2002/0046330 (2002-04-01), Suzuki et al.
patent: 2002/0059505 (2002-05-01), St. Pierre et al.
patent: 2002/0129047 (2002-09-01), Cane et al.
patent: 2002/0144068 (2002-10-01), Ohran
patent: 2002/0181415 (2002-12-01), West et al.
patent: 2003/0051111 (2003-03-01), Nakano et al.
patent: 2003/0097524 (2003-05-01), Brant et al.
patent: 2003/0097619 (2003-05-01), Parry
patent: 2003/0126327 (2003-07-01), Pesola et al.
patent: 2003/0126388 (2003-07-01), Yamagami
patent: 2003/0131068 (2003-07-01), Hoshino et al.
patent: 2003/0182348 (2003-09-01), Leong et al.
patent: 2003/0182503 (2003-09-01), Leong et al.
patent: 2003/0225986 (2003-12-01), Frandsen
patent: 2004/0030852 (2004-02-01), Coombs et al.
patent: 2004/0098547 (2004-05-01), Ofek et al.
patent: 2004/0128442 (2004-07-01), Hinshaw et al.
patent: 2004/0168034 (2004-08-01), Homma et al.
patent: 2004/0230859 (2004-11-01), Cochran et al.
patent: 2005/0021573 (2005-01-01), McDermott et al.
patent: 2005/0034013 (2005-02-01), Yamamoto et al.
patent: 2005/0071586 (2005-03-01), Bartfal et al.
patent: 2005/0071708 (2005-03-01), Bartfal et al.
patent: 2005/0071710 (2005-03-01), Micka et al.
patent: 2005/0108302 (2005-05-01), Rand et al.
patent: 2005/0154846 (2005-07-01), Chen et al.
patent: 2001-356945 (2001-12-01), None
Japanese Ptent Office (JPO) office action dated Dec. 12, 2006 for patent application JP2003-343478 translated to English from original Japanese.

Affiliated with

Also associated with

Rating

Data I/O system using a plurality of mirror volumes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data I/O system using a plurality of mirror volumes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data I/O system using a plurality of mirror volumes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3768484