【摘要】 远程镜像核心数据对于依赖于数字信息的企事业单位越来越重要。平衡数据可用性、存取性能以及构建和维护成本是设计远程镜像系统必须仔细考虑的。本文首先归纳了远程镜像系统的设计目标及其相关的衡量指标,并讨论了远程镜像系统的设计思想,然后对实现方法从不同的角度进行了分类,讨论了相关的实现策略、方法和原则,最后讨论了国内外的研究和开发现状。更多还原

【Abstract】 Remote mirroring has become increasingly important as organizations,and businesses depend more and more on digital information. Balancing the data availability, access performance and the cost of development and maintenance is essential for designing remote mirroring systems. This paper first presents the design goal, related metrics and the methodology of remote mirroring systems. Then, we classify these systems from different viewpoints and discuss their implementation strategies, methods and principles. Finally, the related research and development status quo is introduced.更多还原