Electrical computers and digital data processing systems: input/ – Input/output data processing – Input/output process timing
Reexamination Certificate
2006-11-21
2006-11-21
Fleming, Fritz (Department: 2181)
Electrical computers and digital data processing systems: input/
Input/output data processing
Input/output process timing
C707S793000, C707S793000, C707S793000, C707S793000, C707S793000, C711S154000, C711S161000, C711S162000, C714S005110, C714S006130, C714S006130, C714S710000, C714S718000
Reexamination Certificate
active
07139851
ABSTRACT:
A method and apparatus for re-synchronizing a remote mirroring pair including first and second storage systems which are connected to each other via a path, the first storage system being connected to a host. A primary volume is provided to the first storage system and a remote secondary volume is provided to the second storage system. The remote secondary volume is a copied volume of the primary volume which is in synchronous mode with the remote secondary volume. A local secondary volume is provided in the first storage system and has stored therein journal logs of write I/O's from the host and old data including write data of previous write I/O's. Recovery of data on the primary volume based on the local secondary volume is conducted when necessary by applying the journal logs to the old data without suspending the synchronous mode between the primary and remote secondary volumes.
REFERENCES:
patent: 5555371 (1996-09-01), Duyanovich et al.
patent: 5592618 (1997-01-01), Micka et al.
patent: 5734818 (1998-03-01), Kern et al.
patent: 5889935 (1999-03-01), Ofek et al.
patent: 6308284 (2001-10-01), LeCrone et al.
patent: 6463501 (2002-10-01), Kern et al.
patent: 6526419 (2003-02-01), Burton et al.
patent: 6578120 (2003-06-01), Crockett et al.
patent: 2002/0049925 (2002-04-01), Galipeau et al.
patent: 2002/0083281 (2002-06-01), Carteau
patent: 2003/0135650 (2003-07-01), Kano et al.
patent: 2004/0073831 (2004-04-01), Yanai et al.
patent: 2004/0080558 (2004-04-01), Blumenau et al.
patent: 2006/0005074 (2006-01-01), Yanai et al.
Fleming Fritz
Mattingly ,Stanger ,Malur & Brundidge, P.C.
Patel Niketa
LandOfFree
Method and apparatus for re-synchronizing mirroring pair... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for re-synchronizing mirroring pair..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for re-synchronizing mirroring pair... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3693774