Research And Implementation Of Data Replication Disaster Tolerance System On Windows

With the increase of dependency on the computer data, it has been the indispensable part when companies and ministries run their business and unseen asset and treasure for corporation. In order to protect data from unpredictable disaster such as earthquake, flood, tornado and terroristic attack or from great power failure, network interruption, hardware failure, which can cause mass data loss, a elaborate disaster tolerance solution is necessary to increase the system anti-disaster abilities and minimize or eliminate data loss.Based on researching the current Disaster Tolerance systems and related technologies, the paper presents the data disaster tolerance system on Windows (Co-think Storage Replicator, abbreviated to CSR). The paper introduced and discussed basic concepts, system's architecture, workflow and key technologies of CSR system, and focuses on describing Remote Replication mechanism, Data Sending / Receiving mechanism and Disaster Recovery mechanism.The basic principle of CSR system is to embed Remote Replication mechanism and Disaster Recovery mechanism in the Windows kernel, grap the writing requirements of serving side to replicate them to the replicating side, run disaster-over and disaster-back mechanism to increase the ability of data disaster tolerance of computer systems when any disaster occures.The innovations of CSR system are the protocol of remote replication (transmission) based on volumes, the method of keeping the data Consistency in Replication Volume Group and so on.CSR system is a high-reliability and high-availability system software. It can be applied in remote data backup, disaster recovery and so on, and it supplies users with a kind mechanism of economical, applicable and reliable remote dynamic replication and disaster recovery. It can improve the reliability and availability of computer systems.With analyzing in theory and experimentalizing in fact, CSR system is advanced domestically in technologies and is important to change the situations of domestic companies and departments without data disaster recovery mechanism.