With the importance of data is concerned by the enterprise and uses, the system reliability is becoming the primary consideration factors in the purchase of storage equipment. However, when a large fault occurs, such as power supply interruption, the operating data and status will not be able to be protected in system. It will result data inconsistencies, and even more serious economic losses. In response to these problems, we have analyzed the advantages and disadvantages of the general program of power-down protection in existing systems and the running processes of embedded system. We have designed this system with hardware and software modules for cellphone power-down protection, which can effectively deal with power interruption abnormalities and improve system reliability. By evaluating our system prototype using tool Iometer, we found that the data is correct while opening the power-down protection and the read and write performance of the system has almost no effect.
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