Backup system

Details Backup system Backup system

2007-05-22

2007-05-22

Dalencourt, Yves (Department: 2157)

Electrical computers and digital processing systems: multicomput

Multicomputer synchronizing

C709S223000, C709S224000, C709S225000, C707S793000, C707S793000

Reexamination Certificate

active

10198913

ABSTRACT:
A backup method for a system including a network attached storage including a primary volume and a secondary volume, and a backup server connected to the network. The network attached storage performs a resynchronization process when a backup request is received at a time point that consistency of a file system can be guaranteed, the resynchronization process making the contents of the primary and secondary volumes coincide with each other, splits the secondary volume from the primary volume and transfers data of the secondary volume to the backup server while an online operation with the primary volume continues. The backup server stores the transferred data in a recording medium. The network attached storage performs again the resynchronization process for making the contents of the primary and secondary volumes coincide with each other, after backup completion.

REFERENCES:
patent: 6804690 (2004-10-01), Dysert et al.
patent: 2003/0005120 (2003-01-01), Mutalik et al.

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