A storage solution for multimedia files to support data deduplication

Cloud storage systems have become very important for Internet computing. There are many applications with a lot of multimedia files that have high data redundancy. For this class of applications, traditional file systems are not suitable for storing and accessing multimedia files. Because in these systems, multimedia files are usually divided into several blocks which are stored on many data servers. In order to enable these applications to run efficiently, we propose a model of distributed directory tree to describe the logic structure of directories in the data center. Afterwards, we design and implement the RRMFS (Redundancy Removal Multimedia File System) which can support data de-duplication. The experiment results show that RRMFS not only has good writing performance and good accessing performance when it saves multimedia files with higher redundancy, but also can effectively improve the efficiency of disk storage.