Design and Implementation of an FTL Algorithm Verification Platform Based on NAND Flash

At present, the design of FTL algorithm is crucial to the overall performance of the SSD. In view of the shortcomings of large gap between the verification platform and the real operation at home and abroad, this paper presents an FTL algorithm verification platform based on NAND Flash. Through the establishment of a NAND flash-based storage system software platform, simulating the operation characteristics of NAND Flash, adding the error detection mechanism, simulating the real operation environment, and completing the FTL algorithm's verification. In this paper, the overall design and core module of the software platform are analyzed and described. Finally, the FTL algorithm is run on the software platform and the real flash memory device to complete the simulation experiment. The experiment proves that the error range is within 7%. This paper proposes a NAND Flash based FTL algorithm verification platform, which provides a convenient tool to verify FTL algorithm, and improves the reliability of storage system, shortens the cycle of algorithm development, and reduces the cost of products.