Study and Implementation of Data Redundant Model Based on Dynamic Rules in Cloud

Aiming at replica management in cloud, IRDMDR(Intelligent Redundant Data Model based on Dynamic Rules) and study model are put forward. Every part of the model including realizing method is presented in detail. And the advantages of the model are summarized by comparing with other models. In practice it has proved that the model can optimize access cost, adjust replica number dynamically, achieve load balancing and improve the reliability of the system.