New Generation Of Net-Disk Research On Supporting Automatic Data Backup And Sharing

A large number of files with critical confidential information of today’s companydistribution are deposited in computer terminals of the employees. With the popularity ofmobile storage, laptops and the development of Internet applications, companies areincreasingly concerning about protection of their own intellectual property rights and securityissues of internal important documents. Once this information data are lost or corrupted, itwill cause incredibly loss. Company to adopt data backup system to back up important data isto solve data corruption and missing the only viable solution.Based on analyzing the principle and structure of the automatic data backup system,writer did some thorough researches on important techniques of automatic data backupsystem, systematic business process and designed automatic data backup and sharingsystematic overall structure.Writer designed and implemented a net-disk system with safe automatic data backupand sharing net-disk system. The system established data backup center in the remote ofcomputer and kept a backup of data to a remote server via the Internet. In the meantime, itimproved data storage and data transfer security issues. It also improved backup methods andbettered the availability of the system that is automatic, safe, and reliable.The automatic data backup system betters the data backup method, which adoptsadvanced technology for the incremental amount of backup, stores data to a remote server, inorder to reduce the amount of network transmission. Using this technique can just keepbackups of incremental amount of data without keeping backups of the entire file. Used thefile redundancy detection and elimination technique, the same file only needs to be keptbackups once, and eliminated the redundant backup of the file. This method greatly reducesoccupation for the server storage space, the same file is kept only once in a storage space. Atthe same time, the same file is no longer repeatedly kept backup, which reduce pressure on the network. Therefore reliable data transmission security functions are designed. Thesystem uses efficient data encryption technique, combined with MD5consistency verificationtechnology to protect the key data during transmission of security and recovery of integrityand availability. Data sharing system can realize the data sharing in the system for individuals,Intranet and Internet.