Backup system and method and program

Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique

Reexamination Certificate

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Details

C711S162000, C711S100000, C711S111000, C711S112000, C714S006130, C714S006130, C714S006130, C714S015000, C714S016000, C714S019000, C714S020000, C370S428000, C370S522000, C370S338000

Reexamination Certificate

active

07047376

ABSTRACT:
A remote site stores data received from a currently-used site and transfers the stored data to a proximal site. The proximal site stores the data received from the remote site and transfers the stored data to the currently-used site. The currently-used site crosschecks the data returned from the proximal site against the data transmitted to the remote site, and when the two data do not match each other, transmits the data to the remote site again.

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