Virtual machine starting apparatus and method, and host

A startup device and virtual machine technology, applied in program control devices, software simulation/interpretation/simulation, instruments, etc., can solve problems such as damage, virtual disk file data disorder, etc., and achieve the effect of avoiding data damage

Active Publication Date: 2018-09-07
NEW H3C CLOUD TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since each host can read and write files in the storage device, it is easy for different virtual machines to use the same virtual disk file at th...

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  • Virtual machine starting apparatus and method, and host
  • Virtual machine starting apparatus and method, and host
  • Virtual machine starting apparatus and method, and host

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Embodiment Construction

[0044] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0045] Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art w...

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Abstract

The invention provides a virtual machine starting apparatus and method, and a host. The apparatus and the method are applied to each host in communication connection with a storage device; at least one virtual machine is deployed in each host; and virtual disk files used for starting the virtual machines are stored in the storage device. The apparatus comprises a virtual machine starting module used for obtaining a virtual disk size value recorded in header information of a target virtual disk file when a starting instruction for starting any virtual machine through the target virtual disk file is executed, and starting the virtual machine through the target virtual disk file when the virtual disk size value is greater than a preset threshold value, and a header information modification module used for modifying the virtual disk size value recorded in the header information of the target virtual disk file to a preset size value when the virtual machine is started successfully through the target virtual disk file, thereby preventing other virtual machines from being started through the target virtual disk file.

Description

technical field [0001] The present application relates to the technical field of virtual machines, and in particular, to a virtual machine starting device, method and host. Background technique [0002] Currently, multiple hosts are usually connected to a dedicated storage device (eg, shared storage), and a virtual machine deployed in each host can be started through a virtual disk file stored in the storage device. However, since each host can read and write files in the storage device, it is easy for different virtual machines to use the same virtual disk file at the same time, and then read and write to the virtual disk file at the same time, resulting in the failure of the virtual disk file. Data disorder or even corruption. Contents of the invention [0003] In view of this, the purpose of the present application is to provide a virtual machine startup device, method and host to improve the above problems. [0004] In order to achieve the above purpose, an embodimen...

Claims

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Application Information

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IPC IPC(8): G06F9/455G06F3/06
CPCG06F3/0623G06F3/0643G06F3/0664G06F9/45558G06F2009/45575G06F2009/45579
Inventor 钟晋明
Owner NEW H3C CLOUD TECH CO LTD
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