A data reconstruction method, device, equipment and computer-readable storage medium

Abstract

The invention discloses a data reconstruction method, device, equipment and computer-readable storage medium. The method includes: when it is necessary to realize data reconstruction in a NAND flash memory of a solid-state hard disk, determine the page that needs to realize data reconstruction as a target page; Obtaining in the NAND flash memory the data used to rebuild each data in the target page is related data, and storing the related data in the DDR memory of the solid-state hard disk; Describe the related data corresponding to each data in the target page, and use the related data acquired each time to realize the reconstruction of the corresponding data. In this application, the number of times to read data from NAND flash memory is greatly reduced, and it is changed to read from DDR memory. Compared with the realization of data reading in NAND flash memory, data reading in DDR memory can greatly speed up data reading. Speed, thereby reducing the time-consuming data reconstruction and the impact on the read and write performance of solid-state drives.

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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