A method, device, and computer-readable storage medium for recovering data from a solid-state hard drive

Abstract

The embodiment of the invention discloses a solid state disk data recovery method and device and a computer readable storage medium. The method comprises the following steps: judging whether each datablock in a solid state disk has a read-write error or not; And when the target data block with the read-write error exists, indicating that the stability of the target data block is poor, and if thedata is still stored in the target data block, causing the probability of the read-write error of the solid state disk to rise. Therefore, according to the technical scheme, and when the target data block with the read-write error exists, executing a data migration operation on the target data block with the read-write error, namely migrating the data in the target data block into other relativelystable data blocks to ensure the stable storage of the data, reduce the read-write error rate of the solid state disk and improve the product storage performance.

Description

technical field [0001] The present invention relates to the technical field of data storage, and in particular, to a method, a device and a computer-readable storage medium for recovering data from a solid-state hard disk. Background technique [0002] Solid State Drives (Solid State Drives, SSD) are widely used as a storage device with fast read and write speed. SSD includes multiple data blocks. After long-term use of SSD, the block will gradually become unstable, resulting in write errors, read errors, etc. At this time, it is necessary to move the data in this block as soon as possible and store it in a relatively in a stable block. [0003] In the prior art, for the movement of block data, a corresponding garbage collection (Garbage Collection, GC) mechanism is provided. GC can realize the movement of data, but the trigger of GC is determined by the water level, that is, the number of available blocks is reduced to the water level. GC is triggered only when it is down...

AI Technical Summary

Problems solved by technology

The triggering of GC is aimed at the overall availability of the SSD, and has no direct relationship with the stability of a single block. As a result, the data in the data block cannot be moved in time, resulting in an increase in the read and write error rate of the SSD.

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