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File snapshot method and device, electronic equipment and storage medium

A file snapshot and target file technology, applied in the computer field, can solve problems such as data access delays, achieve the effects of reducing data writing delays, improving data reading efficiency, and improving data writing efficiency

Pending Publication Date: 2020-09-04
SHANGHAI SENSETIME INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the mainstream methods for implementing file system snapshots can be divided into full-copy snapshot technology and differential snapshot technology. These file system snapshot technologies will cause data access delays to a certain extent.

Method used

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  • File snapshot method and device, electronic equipment and storage medium
  • File snapshot method and device, electronic equipment and storage medium
  • File snapshot method and device, electronic equipment and storage medium

Examples

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Embodiment Construction

[0044] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0045] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

[0046] The term "and / or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations. In addition, the term "at least one" herein mean...

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PUM

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Abstract

The invention relates to a file snapshot method and device, electronic equipment and a storage medium, and the method comprises the steps: writing data carried by a writing request into a latest version snapshot created by a read-write layer in response to the received writing request for a target file; and copying at least one piece of underlying data of the target file into the latest version snapshot of the read-write layer under the condition of determining that a data copying triggering condition is met.

Description

technical field [0001] The present disclosure relates to the technical field of computers, and in particular to a file snapshot method and device, electronic equipment and storage media. Background technique [0002] File system snapshot technology is the basic storage technology for software management in container technology. File system snapshot technology can restore data to a state record at an available point in time in the event of an application failure on a storage device or damage to stored data. A snapshot can be either a copy of the data or a replica of the data. [0003] At present, mainstream methods for implementing file system snapshots can be divided into full-copy snapshot technologies and differential snapshot technologies. These file system snapshot technologies will cause data access delays to a certain extent. Contents of the invention [0004] The present disclosure proposes a file snapshot technical solution of a layered file system. [0005] Acc...

Claims

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Application Information

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IPC IPC(8): G06F16/11
CPCG06F16/128
Inventor 张锐叶安华
Owner SHANGHAI SENSETIME INTELLIGENT TECH CO LTD