Disaster recovery system and recording medium and its disaster recovery program and disaster recovery equipment

摘要

By and are connected by a communication network with the master server, the plurality of client terminals are distributed installed, to perform a backup of data files in the master server, the invention enables the recovery of data files in the disaster master server It is an object of the present invention is a. System disaster recovery and system according to the present invention performs the backup by the client terminal is in idle state in which it is distributed, and stores using distributed technology using grid computing, data files for storing the master server . When storing the client terminal, for concealing the data file, and fragmented by dividing those integrated and encrypted data files are encrypted using different encryption keys each addition, each of the encrypted data I transmitted to the client terminal to a different.