Efficient data restoration for a disk-based network backup system

摘要

This paper considers the use of disk-based solution for network backup and studies how to restore data efficiently that can be made possible using disk-based backup solution. The study we conducted is based on the storage media and restoration method. With the maturity of technology and cost falling, disks are becoming increasingly compelling as the backup media over magnetic tapes. The unique advantage of disk is that it is a random access media and it can apply such as possible compression algorithms to different versions of the same file during backup. In addition, restoration of data from disk can be much more convenient compared to tape. We consider in this paper browser/server approach, as well as client application/server approach. We also present a working system called "A-backup system" that offers new benefits such as efficient data restoration for disk-based network backup systems, benefits not possible before with tape based backup systems.