【摘要】 传统容灾技术与复制技术往往是两个独立的概念。从远程备份技术和容灾技术统一考虑的观点,深入研究了容灾系统的数据复制、一致性维护、溢出保护以及灾难后迁移和回迁等关键技术,阐述了其具体实现,并提出了一种高可用的容灾系统模型。分析表明,所提出的方案具有较高的有效性和实用性。更多还原

【Abstract】 The data replication technology is traditionally distinguished from the disaster tolerance technology.In this article,we summarize the technologies and implementation of data replication,consistency maintenance,overflow protection,disaster-over,and disaster-back in a unified point of view,and present a disaster tolerance system of high availability.The theoretical analyses show preliminarily that the new strategy is effective and efficient for disaster tolerance system.更多还原