Abstract: Distributed database is addressed currently effective solution for mass data storage. Data can be shared on distributed database, and site on the local storage can maintain a certain degree of control. However, with the development of modern storage needs, more and more automation requirements, such as physical location of the deployment (domestic and foreign), the capacity to control and expansion, traditional distributed ideas encountered significant bottleneck. This paper presents the SET Model Database, it solves the important problem of multi-datacenter deployment, just as the scheduling and coordination of the whole network, the storage capacity of standardized management.

Key words: distributed database, site, SET model database, storage capacity