ENCODING METHOD, DECODING METHOD, AND STORAGE CONTROLLER

Provided are an encoding method, decoding method, and storage controller; the encoding method comprises: generating a data page group, said data page group comprising data pages, each data page comprising a data ECC codeword, each data ECC codeword comprising a first check data information symbol MS and a data MS; generating a check page for the data page group, each check ECC codeword comprising a second check MS and a third check MS. By means of a first check MS located in the same data ECC codeword as the erroneous data MS and by means of the third check MS corresponding to the erroneous data MS and located in the check page, correcting the data MS; further, the check page further comprising a second check bit used for correcting a third check bit, and correcting the error of the third check bit by means of the second check bit ensuring that the error of the data MS is corrected by the correct third check bit, effectively improving the efficiency and success rate of recovering input data. L'invention conce