Solid-state hard disc and write-in arbitrating method and system thereof

Abstract

The invention discloses a solid-state hard disc and a write-in arbitrating method and system thereof. The method comprises the following steps: counting the quantity of available write resources in the current solid-state hard disc in real time to obtain real-time quantity of available write resources; if the real-time quantity of available write resources is greater than a preset threshold value, alternately carrying out user write commands and garbage recycling write commands according to a preset alternating manner, wherein the alternating manner is that one garbage recycling write command is carried out instantly after one user write command is carried out every time; and if the real-time quantity of available write resources is smaller than or equal to the preset threshold value, just carrying out the garbage recycling write commands. Under the condition that the quantity of currently available write resources is large enough, the user write commands and the garage recycling commands can be carried out alternately, specifically the one garbage recycling write command is carried out instantly after one user write command is carried out every time, so that the stability of user data write performance can be improved in the garbage recycling process.

Description

technical field [0001] The invention relates to the field of storage technology, in particular to a solid-state hard disk and a writing arbitration method and system thereof. Background technique [0002] At present, with the development of technologies such as the Internet, cloud computing, and the Internet of Things, solid-state drives, as a new generation of storage devices, are being used more and more widely. Since the NAND in the solid-state hard disk cannot be overwritten, that is, a physical block must be erased before the user data can be written to the physical block. During garbage collection, if there is valid data in the reclaimed block, it must be moved. In the current garbage collection process, there is often a phenomenon that garbage collection writes and user writes preempt each other's write resources, resulting in large fluctuations in user data write performance. [0003] To sum up, how to improve the stability of user data writing performance during g...

AI Technical Summary

Problems solved by technology

In the current garbage collection process, there is often a phenomenon that garbage collection writes and user writes preempt each other's write resources, resulting in large fluctuations in user data write performance.

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