APPARATUS AND METHOD FOR MANAGING A FILE IN A DISTRIBUTED STORAGE SYSTEM

摘要

The present invention relates to an apparatus and method for managing a file in a distributed storage system. The apparatus and method for managing a file in a distributed storage system according to the present invention involve: calculating a file retention time on the basis of the current time, file creation time, file modified time, and/or the most recent inquiry time; selecting the relevant file as an archived file if the file retention time is larger than a preset reference time; and relocating, from an active server to an archive server or from an active disk to an archive disk, a portion or the entirety of the original file and a copy of the file selected as an archived file. In addition, a portion or the entirety of the original file and a copy of the relevant file is restored from the archive server to the active server or from the archive disk to the active disk, if the total number of inquires on the file selected as an archive file calculated for a predetermined period is larger than a predetermined threshold value, or if the file is modified/updated.