Abstract:

According to access characteristics in the field of education, a hot degree is introduced to characterize the extent of locality based on the educational cloud storage system architecture, and the related calculations based on the spatial and temporal characteristics are implemented. The replica management strategies are designed by applying the concept of service set and Hadoop distributed file system (HDFS). Experiment is conducted on the cloud storage system oriented to education resource: ERS-cloud. It is indicated that the replica management mechanism can effectively improve the efficiency of cloud storage system.

Key words: cloud storage, education resource, service set, replica management strategy