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Data writing method and device based on solid state disk device and equipment

A solid-state hard drive and data writing technology, which is applied to data error detection, electrical digital data processing, and response error generation in the direction of redundancy in computing, and can solve problems such as data storage instability and data loss

Inactive Publication Date: 2019-10-08
SHENZHEN DEMINGLI ELECTRONICS
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Problems solved by technology

[0006] In the existing data writing scheme based on the solid-state hard disk device, if the single-layer storage SLC cache data of the flash memory is read to the random access memory RAM in the flash memory and the data is mapped to the data area in the flash memory when the host is idle In the event of a power outage, data will be lost at this time, resulting in unstable data storage

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  • Data writing method and device based on solid state disk device and equipment
  • Data writing method and device based on solid state disk device and equipment
  • Data writing method and device based on solid state disk device and equipment

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[0047] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. In particular, the following examples are only used to illustrate the present invention, but not to limit the scope of the present invention. Likewise, the following embodiments are only some but not all embodiments of the present invention, and all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0048] The invention provides a data writing method based on a solid-state hard disk device, which can avoid data loss and ensure stable data storage when a power failure occurs.

[0049] See figure 1 , figure 1 It is a schematic flow chart of an embodiment of a data writing method based on a solid-state hard disk device in the present invention. The solid-state hard disk device includes a host, a solid-state hard disk controller, a ferroelectric ...

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Abstract

The invention discloses a data writing method and device based on a solid state disk device, and equipment. The method comprises the following steps: the host sends the data to the solid state disk controller; and the solid state disk controller controls a single-layer storage buffer which writes the data into a flash memory. When the host is idle, the solid state disk controller controls to readthe cache data in the single-layer storage buffer in the flash memory to the random access memory in the flash memory, controls the cached data to be synchronously read to the ferroelectric memory, controls the cached data to be mapped to the data memory in the flash memory, and controls the data in the ferroelectric memory to be rewritten to the flash memory after being powered on again when thesolid state disk controller is powered off. Through the mode, when the power failure condition occurs, data loss can be avoided, and stable data storage is guaranteed.

Description

technical field [0001] The present invention relates to the technical field of solid-state hard disks, in particular to a data writing method, device and equipment based on solid-state hard disk devices. Background technique [0002] SSD (Solid State Disk, solid state drive) is basically popularized in the newly installed computers now, but the capacity is different. Many personal installed computers will also be equipped with an SSD. The SSD starts up quickly, responds quickly, and has good performance. Due to cost issues, the storage chips in SSDs range from SLC (Single-Level Cell, single-layer storage), MLC (Multi-Level Cell, multi-layer storage), TLC (Trinary-Level Cell, three-layer storage) to QLC (Quad-Level Cell, four-tier storage). However, TLC and QLC memory chips themselves are relatively slow to write. For example, TLC flash TLC mode single DIE (logic unit) writes between 10-27MB (MByte, megabytes), for example, QLC flash memory QLC mode single DIE writes about 8...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14G06F12/0866
CPCG06F11/1441G06F12/0866
Inventor 李虎何勇
Owner SHENZHEN DEMINGLI ELECTRONICS
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