Research And Implementation Of Database Backup And Disaster Recovery Based On Oracle Streams

Disaster recovery is a fail over system related to preparing for recovery or continuation of technology infrastructure after a natural or human-induced disaster. Disaster recovery system consist of several at least two physically separated database. Each database server must have an own unique network address. The controlling instance of the fail over system is used to detect the fail over situation and perform the operations needed to redirect client connections, and remote application system will quickly take over to ensure service continuity. Research on disaster recovery based on Oracle database has an important practical significance.Data storage is very important in the database disaster recovery system. Data is valuable resource ,especially in the E-commerce bussiness system. That request 7*24 hours servers uninterrupted. Oracle Streams is the a new feature for data synchronous replication. It is a database technology solutions for enhancing database avalibility, building a backup and disaster recovery system as well as database distribution.The thesis introduced the application of Oracle Streams replication in database backup and disaster recovery . Besides the explaination for the definition of database backup and disaster recovery, and analysis of differences between some classical database backup methods, the Oracle Streams replication is chosen for E-commerce database disaster recovery. Reserch how to use this new feature on datas sharing, and how to set up a complete Streams replication. For example:how to construct Streams replication entironment,how??resolve the changed Streams replication item,and construct the high available entironment,etc. This thesis can be a good reference to other projects. Finally,this thesis introduced what we will do in the future on database backup and disaster recovery .