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A method for configuring erasure codes for solid-state hard drives in disk array storage systems

A solid-state hard drive and storage system technology, applied in the erasure code configuration field of solid-state hard drives, can solve the problems of large amount of data calculation and many cycles, and achieve the effects of avoiding calculation, reducing the number of cycles, and reducing complexity

Active Publication Date: 2017-07-21
HEFEI CITY COULD DATA CENT
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Problems solved by technology

[0008] The purpose of the present invention is to solve the defects of large amount of data calculation and high number of cycles in the prior art, and provide a method for configuring erasure codes for solid-state hard disks in disk array storage systems to solve the above problems

Method used

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  • A method for configuring erasure codes for solid-state hard drives in disk array storage systems
  • A method for configuring erasure codes for solid-state hard drives in disk array storage systems
  • A method for configuring erasure codes for solid-state hard drives in disk array storage systems

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Embodiment Construction

[0036] In order to have a further understanding and understanding of the structural features of the present invention and the achieved effects, the preferred embodiments and accompanying drawings are used for a detailed description, as follows:

[0037] like figure 1 As shown, a method for configuring an erasure code for a solid state disk in a disk array storage system according to the present invention comprises the following steps:

[0038] The first step is initialization processing. All the requested files within a certain period of time are collected into the workload of the solid-state disk, and all files are sorted in ascending order according to the size of the files according to the index information. Concentrate all the pending files and instructions in the workload of the solid-state hard disk, and process them in batches, which can achieve higher work efficiency than a single file processing task within a certain period of time. Reordering according to the ...

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Abstract

The invention relates to an erasing code configuration method for a solid-state hard disk in a disk array storage system, which solves the defects of large data calculation amount and many cycle times compared with the prior art. The present invention comprises the following steps: initialization processing, all the requested files within a certain period of time are concentrated in the workload of the solid-state hard disk, and all files are arranged in ascending order according to the size of the files according to the index information; file segmentation and merging, according to the preset Customize the threshold, split or merge all files to form a unified standard block data block; generate the same data block, generate the same data block through the standard block data block; write new data, the standard block data block and the same data block The blocks are respectively written into the corresponding arrays, and written into the corresponding solid-state hard drives according to the sequence rearranged in the splitting and merging of files. The invention reduces the complexity of the write cycle operation of the solid-state hard disk, optimizes the reliability and fault tolerance, and improves the configuration strategy of the erasure code.

Description

technical field [0001] The invention relates to the technical field of solid-state hard disk storage, in particular to an erasure code configuration method for a solid-state hard disk in a disk array storage system. Background technique [0002] Flash-based solid-state drives are a new type of large-capacity storage device. The loss of solid-state drives is the main factor affecting their reliability. The main factor that accelerates the loss of solid-state drives is the number of write cycles implemented on the flash chip. The number of write cycles in the disk subsystem mainly depends on the erasure code applied on the RAIDS (Redundant Array Of Independent Disks, Redundant Array Of Independent Disks). Erasure codes are used in storage systems to protect data from disk errors. In these codes, n blocks of data are encoded into a combination of m parity data blocks and n data blocks, so that it can withstand m block errors. These codes are usually applied in RAIDS with n+2 d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/10
Inventor 郑烇谢飞谢贻富
Owner HEFEI CITY COULD DATA CENT
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