Cooperative data replication

Details Cooperative data replication Cooperative data replication

2007-12-04

2007-12-04

Sough, Hyung (Department: 2188)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S112000, C711S114000, C707S793000

Reexamination Certificate

active

10742130

ABSTRACT:
A method or apparatus for cooperative data replication. The method in one embodiment can be performed by a computer system or several computer systems executing software instructions. The method may include modifying data in n data blocks of a data volume to create n modified data blocks. A copy of each of the n modified data blocks is created for subsequent transfer to other nodes. A first computer system transmits the n modified data block copies to n nodes, respectively, wherein each of the n nodes comprises a second computer system and a replica of the data volume prior to the modification of data in the n data blocks. Thereafter, one of the n second computer systems transmits a copy of the modified data block copy it receives to another of the n second computer systems.

REFERENCES:
patent: 4432057 (1984-02-01), Daniell et al.
patent: 5488731 (1996-01-01), Mendelsohn
patent: 5787247 (1998-07-01), Norin et al.
patent: 6529960 (2003-03-01), Chao et al.

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