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Solid state disk and method for realizing redundant array of independent disks of solid state disk

An independent disk array and solid-state hard disk technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve the problems that data cannot be processed in parallel, reduce data access efficiency, etc., achieve reliability improvement, Effects of improving storage efficiency and improving security

Inactive Publication Date: 2018-02-09
SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the logical partition mentioned in this patent still has the problem that the data of each partition cannot be processed in parallel. Although the data reliability is improved, the efficiency of data access will be reduced.

Method used

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  • Solid state disk and method for realizing redundant array of independent disks of solid state disk
  • Solid state disk and method for realizing redundant array of independent disks of solid state disk
  • Solid state disk and method for realizing redundant array of independent disks of solid state disk

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Embodiment 1

[0040] A method for realizing a redundant independent disk array of a solid-state hard disk, comprising: using flash memory particles under the same channel in the SSD as a unit, and forming raid5 with flash memory particles under other channels. Make full use of the concurrency capabilities of each channel; add a hardware RAID unit to the traditional SSD controller to accelerate calculations and reduce the speed loss caused by the internal raid formation process.

[0041] Different from the way of traditional SSD storage data, when data is stored in the present invention, the flash memory particles of different channels are formed into raid5, and the data originally stored in one channel will be split into different slice data for calculation and verification. After the verification value is obtained, it is stored concurrently with the slice data in flash memory particles of different channels. The part of calculating the verification is realized by using the hardware unit ac...

Embodiment 2

[0055] A solid-state hard disk that realizes redundant independent disk arrays of solid-state hard disks, including using the concurrent read and write lines of each channel in the SSD to improve the speed of data storage and access, and using the raid5 acceleration unit to realize the dynamic stripe size when data is stored in raid5 Fast calculation of changing and checking data. The hardware unit is located at the end of the SSD controller, and can map the data processing instructions issued by the controller to raid5 processing. The controller does not need to care about the details of raid5 processing, so the efficiency of data storage will not be reduced. Once the flash memory particles are damaged, it will not be reported to the controller when it does not affect data access, and the controller will not be notified that there are bad blocks that need to be processed until the data is damaged beyond repair, thereby delaying the service life of the ssd.

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Abstract

The invention relates to a solid state disk and a method for realizing a redundant array of independent disks of the solid state disk. The method comprises the steps of by taking flash particles of the solid state disk as minimal storage units, establishing a raid5; forming a disk pack; generating a redundancy mechanism; and by taking the flash particles as backup disks of the raid5, virtualizingall the disks and backup disks of the disk pack into a complete disk by adopting a hardware uninstalling method. All the flash particles form the disk array with a redundancy characteristic by adopting a virtualization technology; a user only can see one disk in a using process; and at the moment, a storage space available for the user is a capacity sum of a few flash particles. In addition, whenthe user stores data, the stored data is written in the flash particles in parallel, so that the data reading / writing speed is greatly increased. By adopting the redundancy mechanism of the raid5, thedata redundancy can be improved, and when one flash particle is damaged, other flash particles are not influenced, so that the stored data is protected.

Description

technical field [0001] The invention relates to a solid-state hard disk and a method for realizing a redundant independent disk array thereof, and belongs to the technical field of storage medium design. Background technique [0002] The development of hard disks has a history of more than 50 years. In the course of these decades, the volume of hard disks has become smaller and larger, and the speed and interface of hard disks are also advancing with the times. When the first hard drive came out, it was as wide as two refrigerators, with 50 disks with a diameter of two feet installed inside, and weighed about 1 ton. Now the micro hard drive and CF hard drive are only the size of a coin. [0003] At present, hard disks are generally divided into three categories: solid-state hard disks, mechanical hard disks, and hybrid hard disks. Solid-state drives use flash memory particles for storage, mechanical hard drives use magnetic discs for storage, and hybrid hard drives are a ty...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/062G06F3/0644G06F3/0674G06F3/0689
Inventor 赵瑞东李冬冬陈乃阔吴登勇孙超
Owner SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD
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