Design And Implementation Of The Backup Server Of A Network Backup System

Information technology and network technology is developing rapidly, needs and demands of protection of data integrity , security, and business continuity is growing fast. How to build a disaster recovery system to protect data with high performance is one of the most important issues in storage research and development.First describes the key technology and theory of the backup server. On this basis, the tripartite structure is introduced, which frees backup servers from data transmission in network backup process, balances the load of the system and improving the system's concurrency. A design of network backup system's overall structure is delivered, together with the design and implementation of the communications interface between backup server and backup agent or storage server. Tests show that tripartite structure based network backup system can complete backup and recovery work.Backup server of network backup system is implemented. Running jobs management is the core module of backup server, together with modules of analysis and memory allocation of resources, user interaction and system monitoring, functions of job scheduling, monitoring and feedback of jobs are completed well. Priority based non-preemptive scheduling algorithm is selected for backup server. Proper security mechanism is implemented within backup server, which protects the system well. Tests show backup server can complete the operations in scheduling and job managing, running time cost of backup server affects the entire performance of the system only at a small degree..