Solid state disk data recovery method and device and computer readable storage medium
A technology of solid-state hard disk and data recovery, which is applied in computing, electrical digital data processing, input/output process of data processing, etc., and can solve problems such as data cannot be moved in time, reading and writing error rate increases, etc.
Active Publication Date: 2019-03-26
SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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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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[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0047] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0048] Next, a method for recovering data from a solid-state hard disk provided by an embodiment of the present invention will be described in detail. figure 1 It is a flow chart of a solid-state har...
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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, in particular to a solid-state disk data recovery method, device and computer-readable storage medium. Background technique [0002] Solid state drives (Solid State Drives, SSDs), as a storage device, are widely used due to their fast read and write speeds. The SSD includes multiple data blocks (blocks). After long-term use of the SSD, the blocks will gradually become unstable, resulting in write errors and read errors. In a stable block. [0003] In the existing technology, a corresponding garbage collection (GarbageCollection, GC) mechanism is set up for the movement of block data. 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 drops to the water level GC will only be triggered when it is down. The triggering of GC is aimed at the overall availability of the SSD, and has no direct relationship ...
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Login to View More IPC IPC(8): G06F3/06
CPCG06F3/0614G06F3/064G06F3/0647G06F3/0679
Inventor 郑善龙
Owner SUZHOU LANGCHAO INTELLIGENT TECH CO LTD