Research and design in high-available dual fault-tolerance server

Dual fault-tolerance server is a good solution to guarantee the durative of servers' services and to enhance the reliability of ser-ver.Based on cluster technology,the hardware architecture of high-available dual fault-tolerance server is designed.Many software fault-tolerance methods are introduced into this platform such as self-check,heartbeat etc.And thus,a fault-tolerance management system running on this platform is realized.At last,availability of the fault-tolerance system is analyzed.