某武器系统中心计算机热备份方案分析

Analysis of hot-standby scheme of weapon system's center computer

双机热备份技术是一种软硬件结合的容错应用方案,是计算机应用系统稳定、可靠、有效、持续运行的重要保证。某武器系统中心计算机作为武器系统的通信与控制枢纽,采用双机热备模式提高其工作可靠性。采用心跳技术实现了主机系统与备机系统的联系,在主机系统故障、备机系统无法收到主机系统的心跳信号或手动切换情况下,备机系统将取代主机工作,以保证武器系统工作运行不间断。分析了方案的优点与存在的不足,提出了在不更改硬件系统的情况下增加网络心跳监测,通过软件升级即可实现心跳数据的冗余功能。

The technique of duplicate hot standby is a fault-tolerance scheme combined hardware with software, which is used to make computer system operate in a stable, reliable, efficient and continuous way. As command, control and communications center of a weapon system, the reliability of the center computers can be ensured by a duplicate hot standby scheme. The host computer＇ s working state can be watched by its heartbeat signal to backup computer. The weapon system can work normally by switch between host and backup in case of host fault or no heartbeat signal. Redundanee function can be improved by adding network heartbeat after analysis of the scheme, which can be realized by upgrading software not changing hardware.