Research And Implementation Of The Directory File System That Based On FastDFS

Cloud storage is an emerging network storage technologies extending from the concept of cloud computing. Using clustering applications and distributed file system, cloud storage links a large number of different types and different capacity storage devices in the network together. Cloud storage work together in a unified way providing external data storage and access services. When the cloud computing system is configured mass storage device,and focuses on data management and storage rather than calculated data,it becomes a cloud storage system. In other words, cloud storage is a new storage solution. It puts all storage resources on the cloud, and then makes users access storage services no matter when and where.FastDFS is an open source and high-performance distributed file system. Its main functions include file storage, file synchronization and file access(such as file uploading and downloading). At the same time, it meets the requirements of large capacity and load balance. This thesis will explore a new solution to meet the demand for cloud storage which is based on the existing cloud platform in the laboratory. The new solution will be according to the requirements of cloud storage, on the basis of FastDFS increase with directory service as the core of new features, and design a directory file system based on FastDFS.This thesis expounds the overall design of based on FastDFS directory file system firstly. On the function and performance of the whole system of requirement analysis, general design includes the profile design, overall architecture, module design, design of concurrent access and reliable access, data security and privacy protection design and so on. Overall design determines the based on FastDFS directory file system’s general framework. Under the general framework, the thesis expounds the detailed design and implementation of the whole system. That mainly includes the directory structure, public interface and data security. These three aspects constitute the directory service which is the core of new features. Finally, this thesis tests the whole system, and the result shows that the based on FastDFS directory file system is in line with expectations.