Wear leveling method, device and computer readable storage medium of solid state hard disk

A solid-state drive and wear-leveling technology, applied in the field of data storage, can solve the problems of reduced performance and reliability of solid-state drives, difficulty in guaranteeing the service life of solid-state drives, and uneven wear of flash memory blocks, achieving good wear-leveling effect and preventing long-term occupation. Flash blocks, select the exact effect

Active Publication Date: 2022-08-09
ZHEJIANG HUAYIXIN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using solid-state drives to store data, the data is stored in flash memory blocks, and each flash memory block has a service life. When the load distribution on the flash memory blocks is not balanced, it will cause some flash memory blocks to reach the service life first and become Unavailable, so the performance of the SSD will gradually decrease
Due to the uneven wear of each flash memory block, it is difficult to guarantee the service life of the solid state drive, resulting in a decrease in the performance and reliability of the solid state drive

Method used

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  • Wear leveling method, device and computer readable storage medium of solid state hard disk
  • Wear leveling method, device and computer readable storage medium of solid state hard disk
  • Wear leveling method, device and computer readable storage medium of solid state hard disk

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Embodiment Construction

[0017] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments These are some of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0018] The terms "first", "second" and "third" in this application are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second", "third" may expressly or implicitly in...

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Abstract

The present application discloses a wear leveling method, device and storage medium for a solid-state hard disk. The method includes: dividing the solid-state hard disk into a hot pool and a cold pool according to the update frequency of flash memory blocks; wherein, the update frequency of the flash memory blocks in the hot pool is The update frequency of flash memory blocks in the cold pool is greater than that of the cold pool; the usage of the flash memory blocks in the hot pool and the cold pool of the SSD is obtained respectively; based on the usage, the flash memory blocks are processed, and the processing includes at least one of the following: Or the flash blocks in the cold pool are moved, and the flash blocks in the cold pool are garbage collected. In the above manner, the present application has a better wear leveling effect on the solid-state hard disk, and prolongs the service life of the solid-state hard disk.

Description

technical field [0001] The present application relates to the technical field of data storage, and in particular, to a wear leveling method for a solid-state hard disk, a wear-leveling device for a solid-state hard disk, and a computer-readable storage medium. Background technique [0002] With the rapid development and wide application of computer technologies such as the Internet, cloud computing, and the Internet of Things, a large amount of data needs to be stored all the time in daily life, and users' requirements for solid-state drives for storing data are also getting higher and higher. [0003] For example, a solid state disk (SSD) has the advantages of high performance, low power consumption, small size, large capacity, better stability and reliability, and is therefore widely used. When using solid-state drives to store data, the data is stored in flash blocks, and each flash block has a service life. When the load is not evenly distributed on the flash blocks, som...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06
CPCG06F3/0614G06F3/0631G06F3/0644G06F3/0647G06F3/0652G06F3/0679Y02D10/00
Inventor 成梁
Owner ZHEJIANG HUAYIXIN TECH CO LTD
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