【摘要】 网络备份系统可以保证在灾难发生后,远地存储设备上仍有本地数据的一份或多份拷贝.将本地数据复制到远地存储设备是网络备份系统的主要功能.本文设计并实现了一种定时网络备份系统,该系统使用了带有监控的数据复制方法.方法通过监测业务期间数据卷上数据的变化,将比较数据所花费的开销分布到业务期间内.通过试验表明,该方法可以有效地减少系统备份所需的时间.更多还原

【Abstract】 Network backup system can ensure remote storage have one or more copies of local data when a disaster occurred.The core function of network backup system is copy local data to remote storage.A data replication methods with monitoring on network backup system was proposed in this paper.This method distributes cost of compare data over operation time by monitering the data changes on data volume. The experiment shows the method can reduce the time cost of data replication.更多还原