The Cpci Linux Ha System Design And Implementation

With the rapid development, the computer technique has come into the net_centerd period. Aplenty of use is related with network, which makes higherdemands on the server's performance and reliability. We can us HA(high available)to realize the higher application of the system. i.e. the failure time will be within five minutes per year, so-called five nine application. HA can meet the increasing demands of the great numbers of users and provide then with an environment accepting almost any fault.The thesis based on the CPCI Linux HA scheme and discussed about the designing of the system, the main function compositions and realization of the key technique.It includes:1. CPCI Linux HA scheme designing:the introduction of CPCI, the working flow of the system, the structures of system modules, database, the main table structures.2. the designing and realization of Heartbeat protocol:introduction of the whole structure of Heartbeat, analysis of the main data structures and functions.3. the designing and realization of Checkpoint protocol: introduction of the whole structure of Checkpoint, analysis of the main data structures and functions.