Virtual machine data backup method and system

A technology of data backup and virtual machine, which is applied in the direction of electrical digital data processing, redundancy in computing, data error detection, software simulation/interpretation/simulation, etc. It can solve the impact of virtual machine disk IO, interrupt data backup, etc. problem, achieve the effect of saving storage space and high availability

Active Publication Date: 2017-08-25
PING AN TECH (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing virtual machine data backup process, the incremental snapshot is generated on the local host where the virtual machine is located. The generation process af

Method used

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  • Virtual machine data backup method and system
  • Virtual machine data backup method and system
  • Virtual machine data backup method and system

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0020] figure 1 A flow chart of a method for backing up virtual machine data in this embodiment is shown. The virtual machine data backup method can realize incremental backup of the virtual disk data of the virtual machine, and the backup process does not need to interrupt the virtual machine running on the local host, which can reduce network bandwidth consumption and save data backup time. Such as figure 1 As shown, the virtual machine data backup method includes the following steps:

[0021] S10: The local host 10 receives the read and write request of the virtual machine, performs read and write operations on the local virtual disk based on the read and write request, and sends the write request to the backup host 20.

[0022] In this embodiment, the local host 10 and the backup host 20 include, but are not limited to, computers, tablets, and other terminals on which virtual machines can be installed. A virtual machine is installed on the local host 10, and the virtual...

Embodiment 2

[0069] Corresponding to the virtual machine data backup method disclosed in Embodiment 1, figure 2 A virtual machine data backup system corresponding to the virtual machine data backup method shown in Embodiment 1 is shown. Such as figure 2 As shown, the virtual machine data backup system includes:

[0070]The local host 10 is configured to receive a read and write request from the virtual machine, perform read and write operations on the local virtual disk based on the read and write request, and send the write request to the backup host 20;

[0071] The backup host 20 is configured to receive the write request, and perform a write operation on the backup virtual disk based on the write request, so as to obtain a backup virtual disk image;

[0072] The backup host 20 is configured to obtain an incremental snapshot generation instruction, and generate an incremental snapshot online based on the incremental snapshot generation instruction and the backup virtual disk image. ...

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Abstract

The invention discloses a virtual machine data backup method and system. The virtual machine data backup method comprises the steps that a local host receives a read-write request of a virtual machine, performs read-write operation on a local virtual disk based on the read-write request and sends a write-request to a backup host; the backup host receives the write request, and performs write operation on a backup virtual disk based on the write request to acquire a backup virtual disk image; and the backup host acquires an incremental snapshoot generation instruction and generates an incremental snapshoot on line based on the incremental snapshoot generation instruction and the backup virtual disk image. According to the virtual machine data backup method, the incremental snapshoot can be generated on line on the backup host, data backup from the local host to the backup host does not need to be interrupted, and disk IO of the local host cannot be affected.

Description

technical field [0001] The invention relates to the technical field of computer virtualization, in particular to a virtual machine data backup method and system. Background technique [0002] Virtualization technology virtualizes the CPU, memory, I / O and other devices of a physical machine through Virtual Machine Monitor (Virtual Machine Monitor, hereinafter referred to as VMM) software, and sets up multiple virtual machines (Virtual Machine, hereinafter referred to as VMM) in one physical machine. VM for short), and each VM runs a guest operating system (Guest OS, client machine). VMM coordinates with a host operating system (Dom0 or Host OS, host) to ensure that virtual machines on the same physical machine are isolated from each other, and supports online migration of VMs from one physical machine to another without downtime Physical machines (including online migration based on shared storage and online migration based on local storage). [0003] The snapshot saves the...

Claims

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Application Information

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IPC IPC(8): G06F11/14G06F9/455
CPCG06F9/45558G06F11/1448
Inventor 刘仁仕张齐国
Owner PING AN TECH (SHENZHEN) CO LTD
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