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Data snapshot backup method and device

A data and backup technology that applies redundancy in computing to data error detection, electrical digital data processing, and response error generation. It can solve problems such as high disk read and write pressure, reduced snapshot backup efficiency, and redundancy. , to achieve the effect of reducing the amount of data, reducing the number of snapshot backups, and improving efficiency

Active Publication Date: 2020-05-12
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The current cloud platform adopts the method of full snapshot backup when snapshotting the storage data of the virtual machine. figure 2 Schematic diagram of the operation of using the full snapshot backup method for the storage data of the virtual machine, as shown in figure 2 As shown, the current cloud platform has three virtual machines, which are virtual machine A, virtual machine B, and virtual machine C; the storage data of virtual machine A is composed of basic data A and difference data A1, and the storage data of virtual machine B is composed of Composed of basic data B and differential data B1, the storage data of virtual machine C is composed of basic data C and differential data C1; for each full snapshot backup, it is the basic data part and differential data of each virtual machine Perform full snapshot backup on the data part. Finally, the result of snapshot backup for virtual machine A is basic data A and differential data An, and the result of snapshot backup for virtual machine B is basic data B and differential data Bn. The result of the snapshot backup performed by machine C is basic data C and differential data Cn; when the cloud platform performs batch full snapshot backup, redundant data is often generated, which will lead to a surge in data volume and excessive disk read and write pressure. Reduced efficiency of snapshot backups

Method used

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  • Data snapshot backup method and device

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0033] image 3 It is a flow chart of an embodiment of the snapshot backup method of data in the present invention, such as image 3 As shown, the method may include the following steps:

[0034] Step 101. Obtain information about basic data of multiple virtual machines in the cloud platform.

[0035] Cloud platforms (Cloud platforms) provide services based on "clouds" for developers to use when creating applications. They do not need to build their own foundations, and can rely on cloud platforms to create new software-as-a-service applications; in embodiments of the present invention, This method can be applied on the OpenStack cloud computing management platform.

[0036] The data snapshot backup device will obtain the information of the respective basic data in the data...

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Abstract

The embodiment of the invention discloses a snapshot backup method of data. The method comprises the following steps that: determining the category of respective basic data in the data of a plurality of virtual machines in a cloud platform; uniformly carrying out one-time snapshot backup on the basic data in the data of the virtual machine corresponding to same category of the basic data, and independently carrying out snapshot backup on respective discrepant data in the data of the virtual machine corresponding to the same basic data. The embodiment of the invention simultaneously discloses a snapshot backup device of the data.

Description

technical field [0001] The invention relates to data backup technology, in particular to a data snapshot backup method and device. Background technique [0002] figure 1 It is a schematic diagram of the storage data structure of the virtual machine, such as figure 1 As shown, for each virtual machine, the storage data is composed of the basic data part and the difference data part; wherein, the basic data part is the image data selected when the virtual machine is created, and the difference data part is the actual data of the virtual machine itself; based on Multiple virtual machines on the cloud platform created with the same image will share the same basic data part. The difference is that the difference data part maintains its own data. [0003] The current cloud platform adopts the method of full snapshot backup when snapshotting the storage data of the virtual machine. figure 2 Schematic diagram of the operation of using the full snapshot backup method for the stor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/14
CPCG06F11/1451G06F11/1458G06F11/1484
Inventor 刘勇张晓光郁志强
Owner CHINA MOBILE COMM GRP CO LTD
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