信息系统灾备技术综论

介绍了衡量灾备系统的系统指标，总结了数据容灾、系统容灾和应用容灾的关键技术和实现方法. 提出了灾备技术将按照服务模型从数据存储为中心向应用服务为中心转变、体系架构从集中式结构向分布式和虚拟化相结合的共享并发模式转变、应用模式从孤立专用系统向综合服务系统转变这3个方向发展的思路.

Review of Disaster Backup and Recovery Technology of Information System

Disaster backup and recovery is an important approach for system security and reliability, which can be used as an important support for information assurance in the development policy of China informationization. The measurements used for assessing the performance of disaster-tolerant systems are introduced firstly. The key technologies and realization methods of data-level disaster tolerance, system-level disaster tolerance, and application-level disaster tolerance are then summarized. Three future directions of disaster backup and recovery techniques are presented, which is the service-model shift from the data-storage-center to application-service-center, the architecture shift from a centralized structure to a shared mode based on the combination of distribution and virtualization, and the application mode shift from an isolate and specified system to a comprehensive service system, respectively.