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How to Write Data to Solid State Disk

A solid-state hard disk, data writing technology, applied in the computer field, can solve the problems of practical inconvenience and so on

Active Publication Date: 2016-03-23
RAMAXEL TECH SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In summary, the existing data writing technology of solid-state hard disk obviously has inconvenience and defects in actual use, so it is necessary to improve it.

Method used

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  • How to Write Data to Solid State Disk
  • How to Write Data to Solid State Disk
  • How to Write Data to Solid State Disk

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0028] see figure 1 , the present invention provides a data writing system for a solid state hard disk, the system 100 includes a writing point division module 10 , a selection module 20 and a moving module 30 . in:

[0029] The writing point division module 10 is used for dividing a logical page (page) contained in a logical block (block) into several first writing points and second writing points. In the embodiment of the present invention, the storage structure adopted by the solid-state hard disk is MLCNandFlash, which includes several logical blocks, and each logical block contains several l...

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Abstract

The invention belongs to the technical field of computers and provides a data write-in method of a solid-state disk. The data write-in method includes: dividing logic pages contained in a logic block into a plurality of first write-in points and a plurality of second write-in points, and selecting one write-in point as the start write-in point of a write command when the solid-state disk receives the write command. Preferentially, a storage unit of the logic block comprises two logic pages, and each logic page is divided into a first write-in point and a second write-in point which are used for storing low-order data and high-order data. Therefore, the current write command of a main machine is ensured to be written in the data in the logic block before being damaged.

Description

technical field [0001] The invention relates to the technical field of computers, in particular to a data writing method of a solid-state hard disk. Background technique [0002] MLC (Multi-LevelCell, multi-layer unit) NandFlash has higher storage density than SLC (Single-LevelCell, single-level unit) Nandflash, and is more and more widely used in the field of solid-state hard drives. A storage unit (memorycell) of MLCNandFlash can store 2bits of information. These 2bits belong to two different pages. Such a group of pages is called couplepages, the one storing low bits is called lowpage, and the one storing high bits is called uppage. It executes the following Two constraints: 1) Lowpage must be written before uppage; 2) Uppage is interrupted during the writing process, such as abnormal power failure, the information of uppage will be lost, and the information of its corresponding lowpage may also be lost, And lowpage will not affect its uppage. [0003] In the prior art,...

Claims

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Application Information

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IPC IPC(8): G06F12/02
Inventor 郁志平王猛徐伟华
Owner RAMAXEL TECH SHENZHEN