一种异地容灾系统的设计与实现

Design and implementation of distributed disaster tolerant system

提出并实现了一种异地容灾系统。本容灾系统采用本地容灾控制中心作为本地高速备份缓存,采用远程写操作复制技术,实现数据的异地备份;采用高效率的失效检测算法,实现服务的快速自动切换;采用多种数据恢复策略,实现数据的恢复。此外,此系统支持多种操作系统和数据库,并提供图形化的配置管理工具。

The remote disaster tolerant system used local disaster tolerant center as the high-speed backup cache and remote write operation replication to achieve remote data backup. It implemented automatic service switching by efficient failure detection algorithm. It used several recovery strategies to support rapid data recovery. Moreover, this system supported various operating systems and databases and supplies graphic interface for system configuration.