Design and implementation of multiple database disaster tolerance system

In order to simplify backup of different database,an database disaster tolerance system is designed and implemented.This system can multiple database system and transfer the backup data to remote server,a unified interface and storage format is used.A multiple backup methods and time strategy are supported and,provides a flexible way is provided to make database system disaster tolerant.When disaster happens,it can rebuild the original database system in a different server,which makes the database system disaster tolerant.The experimental result shows through the Abstract of low-level modules,different datebase backup and recovery modeles can be developed using database-dependent technology,that decreases the impact of the server.