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Data deleting method, device and apparatus and computer readable storage medium

A deletion method and data technology, applied in the computer field, can solve the problems of storage performance impact, high consumption, and high computational complexity, and achieve the effects of improving storage performance, improving efficiency, and reducing CPU consumption.

Pending Publication Date: 2020-06-09
SANGFOR TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when data deduplication is used to calculate fingerprints, strong hash algorithms such as SHA1 are usually used to calculate fingerprints, and the calculation complexity is high; Quantity search for duplicate fingerprints will result in a relatively large CPU (Central Processing Unit) consumption and a relatively large impact on storage performance

Method used

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  • Data deleting method, device and apparatus and computer readable storage medium
  • Data deleting method, device and apparatus and computer readable storage medium
  • Data deleting method, device and apparatus and computer readable storage medium

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Embodiment Construction

[0029] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be described in further detail below with reference to the accompanying drawings. All other embodiments obtained under the premise of creative work fall within the scope of protection of the present application.

[0030] In the following description, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is understood that "some embodiments" can be the same or a different subset of all possible embodiments, and Can be combined with each other without conflict.

[0031] If a similar description of "first\second\third" appears in the application documents, the following description will be added. In the following description, the terms "first\second\third" are only used to distinguish and similar Objects do not represent a specific order for objects. It is understood that "first\second\third" can be...

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Abstract

Embodiments of the invention provide a data deleting method, device and apparatus, and a computer readable storage medium. The method comprises the steps of obtaining a pre-stored first data block; ifa second data block the same as the first data block exists in a preset data model library, deleting the first data block, wherein the preset data model library at least comprises data blocks of which the reference frequency exceeds a frequency threshold value; and determining metadata of the second data block as first metadata of the first data block, the metadata of the second data block comprising an identifier of the second data block.

Description

technical field [0001] The embodiments of the present application relate to the field of computer technologies, and relate to, but are not limited to, a data deletion method, apparatus, device, and computer-readable storage medium. Background technique [0002] With the popularity of flash media, in all-flash storage, compression and deduplication have become a key technology in all-flash storage. Compression and deduplication can save storage space and reduce storage costs for customers. Among them, the data deduplication is to calculate the fingerprint of the pre-stored data block through a hash algorithm such as Secure Hash Algorithm 1 (SHA1, Secure Hash Algorithm 1), and then compare it with the existing fingerprint in the fingerprint database to determine whether it has been If there are the same data blocks, if there are the same data blocks, the pre-stored data blocks are deleted, so as to achieve the purpose of deleting duplicate data. However, when data deduplicati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/0625G06F3/0641G06F3/0679
Inventor 张国军
Owner SANGFOR TECH INC