A method and device for data reconstruction

A data reconstruction and data block technology, applied in the input/output process of data processing, electrical digital data processing, instruments, etc., can solve the problem of low data reading efficiency and achieve the effect of improving efficiency

Active Publication Date: 2021-07-09
HANGZHOU HIKVISION DIGITAL TECH
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Problems solved by technology

[0007] In order to overcome the problem of low efficiency of reading data existing in related technologies, the present disclosure provides a method and device for data reconstruction

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  • A method and device for data reconstruction
  • A method and device for data reconstruction
  • A method and device for data reconstruction

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Embodiment Construction

[0054]Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0055] An exemplary embodiment of the present disclosure provides a method for data reconstruction, which can be used in a server, where the server can be a server with a data reconstruction function, and the server can be a separate server, such as It can be a data management server, or a server group composed of multiple servers. For example, it can be a server group composed of a dat...

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Abstract

The disclosure relates to a method and device for data reconstruction, and belongs to the technical field of data storage. The method includes: determining at least one data block to be reconstructed; determining the priority of the at least one data block according to the current attribute of the at least one data block; according to the priority of the at least one data block, and the the stripe to which each data block in the at least one data block belongs, and determine at least one stripe to be reconstructed and the priority of each stripe in the at least one stripe; according to the determined stripe to be reconstructed The priority of at least one stripe is to perform data reconstruction on the data block to be reconstructed included in the at least one stripe. With the present disclosure, the efficiency of reading data can be improved.

Description

technical field [0001] The present disclosure relates to the technical field of data storage, in particular to a method and device for data reconstruction. Background technique [0002] In the field of data storage, people pay more and more attention to the security and reliability of data. In order to enhance the security and reliability of data, erasure code technology is often used to store the object data to be stored. [0003] Specifically, when storing object data, the server may divide the object data into multiple stripes, where each stripe contains N source data blocks and M verification data blocks, (wherein the verification data blocks are based on A specific encoding algorithm is obtained by calculating N source data blocks), and then, each data block in each stripe is stored on a different storage node. In addition, when some data blocks in a stripe are damaged, the damaged data blocks can be calculated based on other data blocks in the stripe, that is, the da...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06
CPCG06F3/0611G06F3/064G06F3/0653G06F3/067
Inventor 吴波夏伟强王伟林起芊
Owner HANGZHOU HIKVISION DIGITAL TECH
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