BAD DISK BLOCK SELF-DETECTION METHOD, DEVICE AND COMPUTER STORAGE MEDIUM

摘要

Disclosed is a bad disk block self-detection method, comprising: dividing each data block mounted into n sub-data blocks of the same size, n being an integer which is not smaller than 2; setting checking information in the fixed location of each sub-data block, and saving data in other locations of each sub-data except the fixed location, wherein the checking information is the parity checking information about the data; and when data is read and written, performing data verification according to the read checking information about the fixed location of the sub-data block. Also disclosed at the same time is a bad disk block self-detection device and a computer storage medium. The solution of the present invention can quickly detect bad disk blocks, and can indicate data migration and disk replacement.