Research On Oracle Database Disaster Technology

Disaster-tolerence backup system, which is an intact one and can match with the local data system, can protect data from disastrous accidents and guarantee the consistence of the system. Once the system is broken, the backup one can take over what are supposed to be handled by local system and consistence of performance is ensured, which prove the importance of the backup system. Data, especially the on in the large-scale system of the enterprise of security and E-business, is the priceless resource to the enterprises, which have to consider the input and output of the data from thousands of users and the consistent performance all the time. So to these enterprise, the stabality of database is an important project. Of all the technology, Oracle's databace, characterized with powerful data processing and applied in various industries, is the first choice in building disaster-tolerence backup system. In Oracle's database, Oracle Streams can fulfill the task of copying database. Using this, the share of data in and between databases can be materialized. Therefore, it can increase the availabiliyt of the database and is ideal technical solution for building disaster-tolerence backup system and the distribution of the database.In the rapid progress of application of information technology in enterprises at present, the consistence of the database, which can guarantee the smoothness of imput and output of the data, must be considered, because the collapse of database surely brings the halt of production, the reduction of customers'satisfation and the competitiveness of the enterprises. And the loss brought by 911 to finance and telecom industries is huge and provide a real example to us. So how to resume system after disaster, how to build a disaster-tolerence backup system to guarantee smooth and stable operations in transaction and how to provide users better service and be free from the bother of the collapse of database become a increasingly attractive topic. And to our delight, many outstanding securities begin to focus on building disaster-tolerence backup system and take the lead in their fields.At last, improvement is put forward after the advantages and the disadvantages of the system are given.