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CSFS: a Java enabled network file storage system

CSFS is a network file storage system that supports file storage on the Internet. In CSFS, dozens of distributed file servers are consolidated together to provide service as a whole. Files names are location independent. Files can be replicated on different servers. System architecture is of good scalability and the system is expected to scale up to one hundred of file servers. We implemented CSFS in pure Java and tested the prototype by a Java versioned Andrew benchmark. Testing result shows: CSFS delivers acceptable performance for general file operations; performance of file upload and download is as efficient as FTP; more than 450 concurrent online users can be supported.