一种服务容灾系统的设计与实现  

Design and implementation of service disaster tolerant system

作　　者：杨雪媚[1] 赵奎[1] 李涛[1] 李峰[1] 

机构地区：[1]四川大学计算机学院,成都610065

出　　处：《计算机应用研究》2010年第7期2647-2649,2653,共4页Application Research of Computers

基　　金：国家自然科学基金资助项目(60873246);国家教育部创新工程重大项目培育资金项目(707875);国家教育部博士点基金资助项目(20070610032)

摘　　要：设计并实现了一种服务容灾系统,对本地服务器上的应用数据进行实时异地备份,对基于IP的应用则可实现服务容灾。该系统对本地服务器磁盘卷进行实时监控,并将数据变化在异地灾备中心进行重放,保证了应用数据安全;提供了多种灾难恢复策略,能够快速恢复应用数据;同时对本地服务器进行失效检测,及时发现故障,在较短时间内将服务从本地服务器切换至远程备用服务器,确保服务连续性。This paper presented a service disaster tolerance system.This system could offer real-time off-site backup for local server application data,for IP-based application,could achieve service disaster tolerance.The system monitorsed the local server disk volumes in real-time,and replayed the data changes,which were monitored,on remote disaster recovery center to ensure the application data security.This system provided several disaster recovery strategy to restore application data quickly.The same time,it could timely detect the failure of local server by offering failure detection,and switched the service from local server to remote standby server in a relatively short period of time once the local server failure was be detected,ensuring the service continuity.

关 键 词：数据镜像 失效检测 服务漂移 IP重定向 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]