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The current status and the disaster risks the information systems faced are analysed in this paper. Combined with domestic and international status of technological developments in the field of information systems disaster recovery, disaster recovery needs and disaster recovery objectives, the primary and disaster recovery system construction framework based on the database replication techniques is designed. The architecture has been used in the domestic to implement the remote disaster recovery system construction, and the successful switch proves the reliability of the architecture.
Yang et al. (Tue,) studied this question.