基于内存同步双机热备系统  

Hot-Standby Dual System Based on Memory Exchange Synchronization Mechanism

作　　者：陈琛[1] 

机构地区：[1]中国电子科技集团第二十八研究所,南京210007

出　　处：《指挥信息系统与技术》2012年第3期73-76,共4页Command Information System and Technology

摘　　要：一般商用双机软件不能适应短事务和强实时系统的要求,设计了一种基于内存换页同步的双机热备系统。首先,介绍了该双机系统的架构及运行原理;然后,描述了关键接续数据内存换页同步的方法、双机故障检测方法以及双机状态切换步骤;最后,试验证明,该系统可以实现主备机的无缝接续。The common commercial dual system software cannot meet the requirements of the short transaction and hard real time system. A hot-standby dual system is designed based on the memory page exchange mechanism to solve this problem. Firstly, the dual system architecture and its running theory are discussed. Then, the shared memory page exchange method, the dual system fault detection theory and the dual system status switch steps are described. Finally, experimental results prove that the dual system can continuously work between the dual systems.

关 键 词：双机热备系统 内存换页 关键接续数据 高可用性 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]