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1. (WO2001035244) FLEXIBLE REMOTE DATA MIRRORING

Pub. No.:    WO/2001/035244    International Application No.:    PCT/US2000/005443
Publication Date: Fri May 18 01:59:59 CEST 2001 International Filing Date: Sat Mar 04 00:59:59 CET 2000
IPC: G06F 3/06
G06F 11/20
Applicants: MIRALINK CORPORATION
Inventors: MCCABE, Ron
CHURCH, Robert
CAMP, Tracy
CARD, Stuart, W.
SCHROEDER, David, J.
Title: FLEXIBLE REMOTE DATA MIRRORING
Abstract:
Methods, systems, and configured storage medium are provided for flexible data mirroring. In particular, the invention provides many-to-one data mirroring, including mirroring from local servers (200) running the same or different operating systems and/or file systems at two or more geographically dispersed locations. The invention also provides one-to-many data mirroring, mirroring with or without a dedicated private telecommunications link, and mirroring with or without a dedicated server or another server at the destination(s) to assist the remote mirroring unit(s) (208). In addition, the invention provides flexibility by permitting the use of various combinations of one or more external storage units and/or RAID units to hold mirrored data. Spoofing, SCSI and other bus emulations, and further tools and techniques are used in various embodiments of the invention.