关键词: 容灾, 各份, 数据级容灾, 应用级容灾, 镜像

Abstract: The wide application of the computer network technology results in the roaring expansion of information. The demand on high applicability and high safety of the information processing system greatly facilitates and revokes the development and application of the backup system for disaster recovery. This system can maximally ensure the normal operation of the computer information system in case of disaster. To establish such a system, the grades should be clearly understood first, and then the tec

Key words: disaster recovery, backup, statistic grading disaster: applied grading disaster, mirror image