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Virtual machine image cloning method and system based on qcow2 format

A technology of virtual machine image and cloning method, which is applied in the field of virtual machine image cloning based on qcow2 format, can solve the problems of time-consuming, increased time length and waste of storage space for copying multiple copies of data.

Active Publication Date: 2018-05-04
OPZOON TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has several disadvantages, for example, the process of copying multiple data is very time-consuming, and as the size of the image file increases, the length of time required will increase linearly
In addition, multiple copies of the same data is a great waste of storage space for users
[0003] It can be seen that the process of copying multiple copies of data in the prior art is very time-consuming, and as the size of the image file increases, the length of time required will also increase linearly, and copying the same data in multiple copies is extremely harmful to the user's storage space. big waste

Method used

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  • Virtual machine image cloning method and system based on qcow2 format
  • Virtual machine image cloning method and system based on qcow2 format
  • Virtual machine image cloning method and system based on qcow2 format

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0019] The invention provides a virtual machine image fast cloning method based on the qcow2 image format. With this method, no matter how large the image space is, the cloning operation can be completed within a predetermined time. In addition, through the method, the same data can be shared between multiple mirror images, thereby effectively saving storage space.

[0020] Qemu is an emulated processor widely used on t...

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Abstract

A virtual machine image cloning method and system based on the qcow2 format, the method comprising the steps of: creating a template image file in the qcow2 format; creating at least one image file in the qcow2 format; Set as a template image file in qcow2 format; create and run a virtual machine based on each image file in qcow2 format; store the modified data of the virtual machine in the corresponding image file in qcow2 format, so that the copying time of the virtual machine image file Greatly shortened, while saving storage space.

Description

technical field [0001] The invention relates to the field of virtual machines of cloud computing network systems, in particular to a virtual machine image cloning method and system based on qcow2 format. Background technique [0002] A large number of virtualization technologies are used in cloud computing network systems. The advantage of this technology is that virtual machines that meet user requirements can be quickly generated. Users often require multiple similar virtual machines to be produced from one template. 90% of the data of these virtual machines are the same, only 10% of the data is unique to each virtual machine. The method for generating a virtual machine in the prior art usually copies multiple images used by a template virtual machine, and then uses the copied images to create a virtual machine. This method has several disadvantages. For example, the process of copying multiple copies of data is very time-consuming, and as the size of the image file incre...

Claims

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Application Information

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IPC IPC(8): G06F9/455G06F11/14
Inventor 徐安
Owner OPZOON TECH
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