多平台数据容灾系统的研究与设计*

基于对Windows和Linux平台卷管理系统的特性分析,提出一种基于卷复制的数据容灾系统模型,并论述了其系统结构、工作原理以及关键技术.该系统的主要特点是采用模块嵌入技术实现系统与平台的有机结合,同时支持多种复制模式以保证数据的一致性,通过加密、压缩传输以提高数据安全性并降低带宽要求,另外提供灾难恢复机制,保证了主数据系统在遭受灾难的情况下可以方便地迁移和回迁.理论和实验均证明,本数据容灾系统较好地保证了数据可靠性和可用性.

Research and Design of Data Disaster Tolerant System on Multi platform

Based on the volume management system for Windows and Linux,a data disaster tolerant system is proposed,and its architecture,implement principle and key technologies are discussed.This system has three technical characters: first,adopting the moduleembedding technology to integrate the system into the platforms;secondary,supplying users with three replication models of Sync,Async,and Soft-Sync,encrypting data to improve the security and compressing data to meet the bandwidth of networks;third,using disaster recovery mechanism to guarantee that the primary data system in disaster can be solved with disaster-over and disaster-back.It's proved that this system increases reliability and availability of data highly.