Virtual machine cloning method and device, equipment and medium

Abstract

The invention discloses a virtual machine cloning method and device, equipment and a medium. The method comprises the steps of obtaining a virtual machine cloning instruction; according to the virtualmachine cloning instruction, starting a card I / O tool used for forbidding issuing a writing instruction so as to control a to-be-cloned target virtual machine not to perform writing operation; snapshooting the target virtual machine to obtain a target snapshot; and cloning the target snapshot to obtain a cloned virtual machine. Visibly, according to the method, after obtaining a virtual machine cloning instruction, a card I / O tool is started according to the virtual machine cloning instruction; therefore, the target virtual machine to be cloned is controlled not to perform write operation; then, snapshotting is carried out on the target virtual machine; after the target snapshot is obtained, the target snapshot is cloned to obtain the cloned virtual machine, so that the cloning of all thevirtual machines to be cloned can be completed at one time under the condition of no shutdown, the time is saved, the cloning efficiency is high, and the data consistency of the obtained cloned virtual machine can be ensured through snapshot printing.

Description

technical field [0001] The present application relates to the technical field of virtual machines, and in particular to a virtual machine cloning method, device, equipment, and medium. Background technique [0002] In some cases, it is necessary to clone the virtual machine, that is, completely copy the virtual machine, and ensure that the external parameters of the virtual machine and the data in the internal operating system are consistent with the original virtual machine. The traditional method of cloning database virtual machines: first shut down all the virtual machines to be cloned in the cluster, and then clone the virtual machines and the data in the shared storage one by one, so as to ensure data consistency. It can be seen that the traditional technology has the following shortcomings. First, it needs to be shut down, which will interrupt the business and cause production loss; secondly, it cannot clone each virtual machine to be cloned at one time. Generally, the...

AI Technical Summary

Problems solved by technology

It can be seen that the traditional technology has the following shortcomings. First, it needs to be shut down, which will interrupt the business and cause production loss; secondly, it cannot clone each virtual machine to be cloned at one time. Generally, the cluster uses external storage as shared storage. After cloning the virtual machine, the data on the storage must be copied to the new external storage separately. The whole process takes too long and the efficiency is too low

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