Solid-state disk writing method and solid-state disk

A solid-state drive, to-be-written technology, applied in the input/output process of data processing, input/output to record carriers, instruments, etc., can solve the problem that the writing performance of solid-state drives needs to be further improved, and achieve high-performance Incoming and saving bandwidth

Active Publication Date: 2019-11-08
ZHEJIANG HUAYIXIN TECH CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

However, in order to meet the growing needs of users, the write performance of solid-state drives needs to be further improved

Method used

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  • Solid-state disk writing method and solid-state disk
  • Solid-state disk writing method and solid-state disk
  • Solid-state disk writing method and solid-state disk

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Embodiment Construction

[0024] After long-term research, the inventor found that in order to improve the writing performance of the SSD, a fixed area can be used as the cache area when the disk is opened. All host data are written into the cache area first, and the garbage is started when the cache area is almost full. The recycling mechanism moves the valid data in the cache area to the flash memory area. The disadvantage of this method is that due to the limited storage space of the solid-state hard disk, the size of the fixed area used as the cache area is also limited. Once the cache area is about to be filled, the movement of valid data will occupy a certain amount of bandwidth. It will not be possible to continue to maintain high-performance writes. It should be noted that the term "cache area" in this application refers to the SLC area used for data caching in the solid-state hard disk; the term "flash memory area" in this application includes the MLC area, TLC area, and And at least one of t...

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Abstract

The invention provides a solid state disk writing method. The solid state disk writing method comprises the following steps: starting a task of writing to-be-written data into a cache region; judgingwhether the residual space of the cache region is smaller than a first threshold value or not; if the residual space of the cache region is smaller than the first threshold value, starting a garbage collection mechanism, and reserving the hot data in the cache region in the cache region; and moving the cold data in the cache region to a flash memory region. In addition, the invention further provides a solid state disk writing device, a solid state disk and a computer readable storage medium. According to the technical scheme provided by the invention, high-performance writing of the solid state disk can be kept for a long time.

Description

technical field [0001] The present application relates to the technical field of computer storage, in particular to a writing method of a solid-state hard disk and the solid-state hard disk. Background technique [0002] A traditional mechanical hard disk (HDD) contains mechanical parts, and the magnetic head must move to the target position on the fast-rotating disk for writing and reading. Therefore, a large amount of mechanical action is consumed, and the efficiency is low. The reading speed of solid-state hard disk (SSD) far exceeds that of mechanical hard disk, and it is more shockproof and drop-resistant than mechanical hard disk. The reason is that solid-state hard disk is made of solid-state electronic memory chip array, and integrated circuit replaces traditional rotating disk. However, in order to meet the increasing demands of users, the write performance of solid-state drives needs to be further improved. Contents of the invention [0003] The inventors have f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/061G06F3/0656G06F3/0679G06F3/0644Y02D10/00
Inventor 杨超
Owner ZHEJIANG HUAYIXIN TECH CO LTD
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