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Optimization method and device of SSD (solid state disk) data inspection

A solid-state hard drive and data technology, applied in static memory, instruments, etc., can solve the problems of not considering the impact of system SSD data retention time, increased read and write delay, and over-frequency inspection, so as to ensure data reliability and reduce performance low impact, performance impact

Active Publication Date: 2017-06-30
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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AI Technical Summary

Problems solved by technology

The existing data inspection method does not consider the impact of the actual operating state of the system on the SSD data retention time when it is actually used. When the system temperature is high, it is easy to cause the problem of insufficient inspection. When the system temperature is low, it is easy to cause insufficient inspection. The problem of overfrequency, and does not consider the impact on the user's read and write performance, which may easily cause increased read and write delays

Method used

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  • Optimization method and device of SSD (solid state disk) data inspection
  • Optimization method and device of SSD (solid state disk) data inspection
  • Optimization method and device of SSD (solid state disk) data inspection

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Embodiment Construction

[0033] The core of the present invention is to provide an optimization method and device for solid-state disk data inspection, so as to improve data reliability.

[0034] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0035] Please refer to figure 1 , figure 1 It is a flow chart of an optimization method for solid-state hard disk data inspection provided by the present invention, the method co...

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Abstract

The invention discloses an optimization method and device of SSD (solid state disk)data inspection. The method comprises steps as follows: temperature information of an SSD is acquired, and an inspection triggering cycle is updated according to Nand flash data retention time and the temperature information; data inspection is performed according to the updated inspection triggering cycle; a physical page containing valid data is looked up; ECC (error correcting code) error checking is performed on the physical page; if the number of error bits in the physical page exceeds a preset threshold value, the physical page is subjected to data migration. By means of the method, the data reliability is improved.

Description

technical field [0001] The invention relates to the technical field of computer storage, in particular to an optimization method and device for solid-state disk data inspection. Background technique [0002] At present, with the development of cloud computing, Internet of Things and semiconductor technology, solid-state drives are widely used in various computing devices as a new generation of storage. Due to the physical characteristics of the Nand Flash memory, it is easy to cause bit flips and bad block errors, so it is necessary to perform data inspection on the solid state drive SSD. [0003] The current inspection methods for solid-state hard disk data include: 1. Determining the inspection period; 2. Triggering the inspection periodically. The existing data inspection method does not consider the impact of the actual operating state of the system on the SSD data retention time when it is actually used. When the system temperature is high, it is easy to cause the prob...

Claims

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Application Information

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IPC IPC(8): G11C29/42
CPCG11C29/42
Inventor 刘哲刘冬好王杰华黎剑坤
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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