一种基于非专线Internet应用级容灾系统设计与实现  

Design and Implementation of an Application Level Disaster Recovery System Based on Internet

作　　者：黄震[1] 刘晓洁[1] 卢正添[1] 

机构地区：[1]四川大学计算机学院,四川成都610065

出　　处：《计算机安全》2009年第5期11-13,共3页Network & Computer Security

基　　金：国家自然科学基金(60573130;60502011);教育部新世纪优秀人才计划(NCET-04-0870);863基金2006AA01Z435资助

摘　　要：设计并实现了一种基于非专线Internet的应用级容灾系统。通过仅备份差异数据的高速缓存解决了本地和Internet带宽不匹配的问题,通过累计散列值算法克服了Internet不稳定的问题。当灾难发生时,通过服务切换的方法使得备用系统接替主系统继续提供服务,保持了业务连续性,在克服了非专线Internet带宽和稳定性不足等因素的同时,实现了应用级容灾。An application level disaster recovery system based on Internet is proposed and realized. The problem of local and Internet bandwidth mismatch is solved through cash backup of data in differences, and another problem of Internet instability is also solved through Cumulative Hash Algorithm. When a disaster occurs, through the method of switch to back-up system instead of the main system, service can continue to be provided, so the application level disaster recovery is achieved.

关 键 词：应用级容灾 差异数据备份 累计散列值算法 服务切换 

分 类 号：TP393.4[自动化与计算机技术—计算机应用技术] TP309.3[自动化与计算机技术—计算机科学与技术]