RESTORATION SYSTEM, RESTORATION METHOD, REDUNDANT CONTROL DEVICE AND REDUNDANT CONTROL PROGRAM

摘要

PROBLEM TO BE SOLVED: To reduce service interruption time by reducing costs for preparing a backup base and a backup server.

SOLUTION: In a restoration system, each of bases includes one or more nodes, for providing services, each having a first server to provide a service, a standby second server and a data storage means for storing service data required for the service provision. Each node is configured to be alternative to another node installed in another base. The data storage means is configured to store service data of a service to be provided by the node and service data of a service to be provided by the other alternative node in the other base. If any failure occurs in the first server or in the other alternative node in the other base, the second server acquires required service data from the data storage means and provides the service which have failed.

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