Abstract

In the computer system, only the data storing in the computer are the real fortune, and the protection of information and data are crucial. In the day that data security becomes more and more important, the stable and self-contained backup system has been the key to ensure the normal running of the system. Data backup is not only the conservation of data, but includes more important content, i.e. the management, or else, the data will be lost even the whole hard disk will be dormant, and hell and gone losses will be induced.

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