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Garbage recycling method and system for solid state disk

A solid-state hard drive, recovery and processing technology, applied in the storage field, can solve problems such as data startup, affecting the life of solid-state hard drives, etc., to achieve the effect of prolonging life and ensuring stability

Pending Publication Date: 2021-03-02
合肥康芯威存储技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing garbage collection conditions are fixed, and the garbage collection function is not activated according to the specific data in the solid state drive, which affects the life of the solid state drive

Method used

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  • Garbage recycling method and system for solid state disk
  • Garbage recycling method and system for solid state disk
  • Garbage recycling method and system for solid state disk

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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0044] see figure 1 As shown, the solid state hard disk 20 is a storage device using semiconductor flash memory as a medium. Different from traditional mechanical hard disks, solid-state hard disks 20 use semiconductors to store data, and are implemented with pure electronic circuits without any mechanical equipment. The user sends a request to the solid-state hard disk 20 at the application level of the operating system of the host computer 10, and the file syste...

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PUM

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Abstract

The invention discloses a garbage recycling method and system for a solid state disk. The garbage recycling method for the solid state disk comprises the steps: acquiring the total capacity, reservedspace and the total number of flash memory blocks of the solid state disk; monitoring the number of valid data and the number of blank flash memory blocks in each flash memory block in the solid statedisk; obtaining a first threshold value according to the reserved space, the total number of the flash memory blocks, the number of valid data in each flash memory block and the total capacity of thesolid state disk; when the number of the available flash memory blocks of the solid state disk is equal to the first threshold value, transmitting effective data on a source flash memory block to thereserved space, and erasing contents on the source flash memory block. By means of the garbage recycling method of the solid state disk, the service life of the solid state disk can be prolonged.

Description

technical field [0001] The invention belongs to the technical field of storage, and in particular relates to a method and system for garbage collection and processing of solid-state hard disks. Background technique [0002] A solid state disk (Solid State Disk, SSD) is based on a permanent memory, such as a flash memory. It has fast reading and writing speed, low power consumption, no noise, anti-vibration, low heat, small size, and large working range. It is widely used in military, vehicle, industrial control, video surveillance, network monitoring, network terminals, electric power, medical, aviation etc., navigation equipment and other fields. [0003] When the solid-state disk is doing garbage collection, when the user writes data, if the available flash memory block is less than a certain threshold, then garbage collection is required to make room for the user to write. The garbage collection at this time is called front-end garbage Recycling (Foreground, GC). Corre...

Claims

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Application Information

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IPC IPC(8): G06F3/06
CPCG06F3/0616G06F3/0608G06F3/0652G06F3/0653G06F3/0679
Inventor 苏忠益
Owner 合肥康芯威存储技术有限公司