The Application Research Of Database Synchronization Technology In Disaster Recovery System

As the computers'and networks'widely spread greatly facilitate people's lives and work, but alone with the dependence on data security issues become more and more prominent. Although the data concentration of business systems could improve efficiency, but at the same time it brought a huge data security risk. Once disasters occurred, if no restore important data, most likely caused the incalculable losses. With the technology-depth of growing information, information security has become a serious problem which facing our country needs.This essay is based on the mainstream disaster recovery technology research, from the basic principles, the practical application to the point of view of disaster recovery systems are introduced, at the moment respectively describe and compare their operational processes, organizational structure, application methods and hardware, and examples a traffic management system, integrated business disaster recovery plan, for an instant, began to study in two ways-their actual needs and existing conditions analysis, which combined with the disaster recovery program for the analysis of the common comparison of the theoretical and practical application of two-pronged approach of building a highly available, cost-effective disaster recovery traffic integrated business system.The study will focus on the key aspects of disaster recovery systems-database synchronization,in the design and build of the traffic police detachment integrated business management system, the choice of Linux operating system, Data Guard and Oracle database and plug in modeling the actual comparison, analysis, the use of transaction synchronization model to services for the synchronization unit, by transmitting redo log data synchronization. This scheme will be archived redo logs after the transfer, while lowering some synchronization, but reduced the precious system performance and resource consumption, and high performance in timeliness between the search for a better balance. The article also design the related to the detection mechanism, and the default of several possible error conditions and synchronization of data disaster response program.