Design and Implementation of Remote Backup System based on HDFS

For the traditional remote file backup system saving backup data on a single-node,what the problem is the limited storage space,poor performance of reading and writing under multi-user and backup data single copy,a remote file backup system based on HDFS was designed.The user's backup data is stored distributed on multiple data storage servers,while metadata is stored on a separate control server.It can effectively solve the limited space problem of single storage server,improve the performance of multi-user's concurrent reading operations,provide a file-copies-store strategy,which enhance the security of the backup files.