FILE STORAGE SYSTEM AND METHOD FOR MANAGING DUPLICATED FILES IN THE FILE STORAGE SYSTEM

摘要

A file storage system performing a file recovery and minimizing a redundant file within a system and a duplication method of managing a file are provided to store minimum file duplication about a plurality of storage request about same file. A client(110) requests new file production. A metadata server(120) stores information about previously stored file duplication. The metadata server confirms whether to repeat the pre-stored file about the file which is requested from the client. The metadata server performs the control operation in order not to exceed the preset number of copies. The file copy unit and the storage of data servers perform file duplication and file storage by the control of the metadata server.