Company X intends to implement open source Distributed File System. The have had problems on how to solve the synchronization between the computers, how to ensure the consistency of the data (same data on all replicated locations), or how to grant concurrent access to the same file for several users at the same time, as the classical solutions available in the client/server paradigm usually stop working in the distributed world. You have been selected as the lead consultant to evaluate five open sources DFS software's, select the most appropriate DFS that they can adopt to solve the current problems and implement the proposed solution