Research on the Data Storage and Access Model in Distributed Computing Environment

A classified distributed storage model and a layered access control model in distributed computing environment is presented in order to enhance the efficiency of data access and to protect the security of information. In classified distributed storage model, the data distributed in each physical storage spot is organized into four components which includes active data storage, static data storage, backup data storage and data warehouse. The efficiency is improved because regular data visiting is gathered at active data storage and static data storage. The layered access control mode is presented based on RBC model. In this model, security control is gathered at three layer which includes management layer, operation layer and application layer. The system has been applied to Zhejiang Fuchunjiang Limited Company, and gained good evaluation.