公开(公告)号：US10289497B2

公开(公告)日：2019-05-14

申请号：US15073072

申请日：2016-03-17

Applicant: Electronics and Telecommunications Research Institute

Inventor： Young Chul Kim ,  Young Kyun Kim ,  Sang Min Lee

IPC: G06F17/30 ,  G06F11/14

Abstract: Provided herein is a distributed file system including a meta data server configured to store and manage meta data of a file; and a data server configured to store and manage data and attribute information of the file, wherein, in response to a writing request from a client, the meta data server stores data requested to be changed in a delta chunk of a read-only snapshot file, and connects the original file and the read-only snapshot file in an inode structure.