摘要
随着通信技术的快速发展,系统数据流量和运算复杂度不断增加,对系统的可靠性提出了越来越高的要求。文中分析了可靠性机制的现状,针对基于CPU主控平台的双机热备份系统,对其硬件和软件设计方法进行了详细的描述。硬件可采用一体机结构或多板机结构,主备机之间通过网口实现数据和状态信息的传递;软件通过综合采用硬盘镜像机制、心跳机制、强制切换机制等实现故障情况下主备机之间准确、快速、无感的切换。
Due to fast development of communication technology and increase of system data throughput and algorithm complexity, higher requirements to system reliability are demanded. In this paper, the author analyzes the present status, focuses on dual hot standby system based on CPU main control platform and describes the design of hardware and software in details. The hardware is designed in integrated or multiple forms, while information is transmitted via Ethemet port between host and standby. The software will realize an accurate, fast and non-inductive handoff on standby through hard disk images mechanism, heartbeat mechanism and force handoff mechanism when faults occur.
出处
《计算机与网络》
2013年第11期55-57,共3页
Computer & Network
关键词
双机热备份
心跳机制
强制切换机制
dual hot standby
heartbeat mechanism
force handoffmechanism
