Data reconstruction method, device and apparatus, and computer-readable storage medium

Abstract

The invention discloses a data reconstruction method, device, and apparatus and a computer-readable storage medium. The method comprises the following steps: when the data reconstruction in a NAND flash memory of a solid-state hard disk needs to be realized, determining a page which needs to be reconstructed as a target page; Obtaining, from the NAND flash memory, data for reconstructing each datain the target page as related data, and storing the related data in a DDR memory of the solid-state hard disk; sequentially obtaining The relevant data corresponding to each data in the target page from the DDR memory, and reconstructing the corresponding data by using the relevant data obtained each time. The present application greatly reduces the number of times data is read from the nand flash memory, Reading from DDR memory instead of NAND flash memory can greatly accelerate the speed of data reading, thus reducing the time consuming of data reconstruction and the impact on the read-write performance of solid-state hard disk.

Description

technical field [0001] The present invention relates to the technical field of solid-state hard drives, and more specifically, to a data reconstruction method, device, equipment, and computer-readable storage medium. Background technique [0002] With the development and wide application of technologies such as the Internet, cloud computing, and the Internet of Things, in human life, massive data needs to be processed and stored all the time. The rapid development of information technology puts higher demands on the performance of storage systems. Require. [0003] Solid-state drives are widely used because of their fast read and write speeds and low power consumption. In the process of reading and writing data in the solid-state hard disk, it is inevitable that the read operation will fail. At this time, some error correction methods will be used, such as read retry, soft ldpc, etc. When these methods are not successful, data will be used. Rebuild, that is, restore data b...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a data reconstruction method, device, equipment and computer-readable storage medium, which can solve the problems of time-consuming and affecting the read and write performance of solid-state hard drives in the technical solutions for data reconstruction in the prior art

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