The Design And Implementation Of A Delta-Based Automatic Data Backup System

Data backup technique is a very important method for computer users to protect their data. Most of the data backup products exist in the market at the present time aim at the server level. This paper tries to design a kind of data backup system as the assistant of existent high level products in the market.The system is deployed in the tcp/ip network system to protect the important data stored on the protected computer. Several features differentiate the system from others:● Automatic data backup, the daemon program installed on the client computer could track the file changed and lock the file to compute the different.● Multi-point delta backup, Just store the different when the file has changed. So we can store the file status more than once.● Multi-point delta recovery, Recovery the file to any status stored on the server.● Batch recovery, More than one file can be recovered at a time. Restore a whole directory with only one recovery operation.● Distributed architecture, through register to the server, clients could store their data on the data server.● Web based UI. Provide an easy way for those unfamiliar computer users to use the sy- stem.● Convenient content searching system. User can search content of the text based file.● Exception handles, Client daemon program can store the backup data on the local storage when network or server exception occurs, Data will be sent to the data backup server till exceptions are removed.● The client daemon program could be...