DATA RECOVERY METHOD, STORAGE DEVICE, AND STORAGE SYSTEM

摘要

Embodiments of the present invention provide a data recovery method. The method comprises: determining a first Chunk whose failure occurs in a disk of a storage device; setting a space attribute of the first Chunk as an inaccessible state; searching for an idle second Chunk in a storage space of the storage device, the space attribute of the second Chunk being not set as an inaccessible state; recovering data stored in the first Chunk; and writing the recovered data into the second Chunk. When a partial failure occurs in a storage device, the reliability of data can be ensured.