针对容灾系统中的数据传输问题,研究并建立了数据传输模型。提出了保证数据在传输过程中的一致性的研究思想,即通过使用日志卷记录对磁盘I/O的记录,确保请求的严格顺序,通过不同场合采用的不同传输策略实现数据的一致性,通过身份验证策略实现数据传输的安全性,并对传输性能进行了优化和实验验证。
As to the data transport of disaster-tolerate system, this paper gives the model of data transport. It presents the thought of how to guarantee data consistency during the transport, which uses the log volume to record the request in order to guarantee the strict sequence of request and uses different strategies under different conditions in order to guarantee data consistency and implements the security of data transport by using identity's authentication. At last, it also gives an optimization method about the performance of transport.