WEAR LEVELING METHOD AND APPARATUS AND STORAGE MEDIUM

摘要

A wear leveling method and apparatus and a storage medium are disclosed, the method including: performing error correction on data read from a physical block to obtain corrected data, and counting corrected bits in the corrected data to obtain the number of the corrected bits, where the data as read may be previously written to the physical block in a dynamic wear leveling manner and/or a static wear leveling manner, and the number of the corrected bits is negatively correlated with a residual service life of the physical block; detecting whether the obtained number of the corrected bits is more than a preset bit-number threshold value; and transferring data stored in the physical block, if the number of corrected bits is detected as more than the preset bit-number threshold value.

主权项

1. A wear leveling method, comprising:
reading a data stored in a physical block; performing error correction on the data read from the physical block to obtain a corrected data, and counting corrected bits in the corrected data to obtain a number of the corrected bits, wherein the data is previously written to the physical block in a dynamic wear leveling manner or a static wear leveling manner, and the number of the corrected bits is negatively correlated with a residual service life of the physical block; detecting whether the obtained number of the corrected bits is more than a preset bit-number threshold value; and transferring the data stored in the physical block, if the number of the corrected bits is detected as more than the preset bit-number threshold value.