Remote copy system

Details Remote copy system Remote copy system

2011-01-04

2011-01-04

Tsai, Sheng-Jen (Department: 2186)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

Reexamination Certificate

active

07865680

ABSTRACT:
Provided is a remote copy system capable of guaranteeing the time ordering of data to be handled by a remote site even when the tasks at the remote site are operated across a plurality of storages or a plurality of volume groups. A consistency group consisting of a secondary journal volume and a replica is associated with a journal group consisting of a primary data volume, a primary journal volume, a secondary journal volume, and a secondary data volume. Upon backing up a secondary data volume and forming a replica, the host system issues a backup time reservation command to a storage apparatus, and the storage apparatus creates a replica by comparing the time stamp added to the journal data and the backup reservation time.

REFERENCES:
patent: 5657320 (1997-08-01), Russ et al.
patent: 6691245 (2004-02-01), DeKoning
patent: 7167963 (2007-01-01), Hirakawa et al.
patent: 7418565 (2008-08-01), Takeda et al.
patent: 7600087 (2009-10-01), Yamagami
patent: 7660957 (2010-02-01), Hirakawa et al.
patent: 2004/0073831 (2004-04-01), Yanai et al.
patent: 2004/0268067 (2004-12-01), Yamagami
patent: 2005/0060505 (2005-03-01), Kasako et al.
patent: 2005/0132155 (2005-06-01), Kasako
patent: 2006/0031646 (2006-02-01), Maruyama et al.
patent: 2006/0174076 (2006-08-01), Takeda et al.
patent: 2006-079568 (2004-09-01), None

Affiliated with

Also associated with

Rating

Remote copy system does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2633098