File backup scheme based on index
Ruwei Chen · Electronic Design Engineering · 2011
According to the problems that there are a lot of same files redundancy in data backup server,a new file backup scheme based on index is proposed.The core of this scheme is to establish an index for the backup files with a two-dimension chain table,and only store a copy for the same files.In this way,same file redundancy can be eliminated,and then storage space is saved.This scheme includes following aspects: identification of same file,storage of files,treatment of folder,process of backup and backup file update.Theoretical analysis and experimental results show that this scheme saves more storage space than traditional methods,but both the time consumption and the system load of the backup process are increased.