Distributed data access method and device based on block chain and storage node

A technology of distributed data and storage nodes, applied in the field of data processing, can solve problems such as waste of space and security risks

Pending Publication Date: 2020-12-25
BANK OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are security risks in centralized storage, and repeated storage of each node in the blockchain wastes space

Method used

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  • Distributed data access method and device based on block chain and storage node
  • Distributed data access method and device based on block chain and storage node
  • Distributed data access method and device based on block chain and storage node

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Embodiment Construction

[0059] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0060] The current hard disk arrays are usually stored in the same cabinet and the same computer room. If the cabinet fails (such as a power failure), the hard disks will fail as a whole and cannot provide storage services. Therefore, a space-saving and fault-tolerant solution is needed.

[0061] Considering the problems existing in the prior art, the inventor proposes a block chain-based distributed data access scheme, which is a new block chain distributed storage method to solve the above problems.

[0062] In the embodiment of the present invention, by establishi...

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PUM

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Abstract

The invention discloses a distributed data access method and device based on a block chain and a storage node, N storage nodes form a block chain network, the storage nodes are distributed in different machine rooms, and the write-in method comprises the following steps: a client receives a write-in request and sends the write-in request to the block chain network; wherein the request comprises adata file and a corresponding main file identifier; when receiving the request, the main storage node splits the data file into N-1 sub-data files and allocates sub-file identifiers; according to a preset parity check strategy,each sub-data file and an address where the corresponding check data should be stored in a storage node are determined, and the sub-data files, the check data and data directories corresponding to the sub-data files and the check data are sent to the blockchain network; wherein the data directory comprises a main file identifier, a sub-file identifier and a storage nodeaddress; and each storage node receives and stores the sub-data file, the corresponding verification data and the data directory. According to the invention, the security of data storage can be improved and the data storage space can be saved.

Description

technical field [0001] The present invention relates to the technical field of data processing, in particular to a blockchain-based distributed data access method, device and storage node. Background technique [0002] This section is intended to provide a background or context to embodiments of the invention that are recited in the claims. The descriptions herein are not admitted to be prior art by inclusion in this section. [0003] At present, data files are usually stored centrally on each server or repeatedly stored on each node of each blockchain. There are security risks in centralized storage, and the repeated storage of each node in the blockchain wastes space. Contents of the invention [0004] The embodiment of the present invention provides a blockchain-based distributed data writing method to improve the security of data storage and save data storage space. N storage nodes form a blockchain network, and N is a positive integer greater than 2 , each storage ...

Claims

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Application Information

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IPC IPC(8): G06F16/22G06F16/27G06F21/62
CPCG06F16/2282G06F16/27G06F21/6218
Inventor李增兴曾东林李昀邓卫兵
OwnerBANK OF CHINA