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Method, device, electronic equipment and medium for online incremental backup and restoration of virtual machine

An incremental backup and virtual machine technology, applied in the computer field, can solve the problems of long backup and recovery time, low disk space utilization, manual management and archiving of historical time points, etc., to improve disk space utilization and backup efficiency, The effect of improving efficiency

Active Publication Date: 2022-06-24
江苏安超云软件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional backup point management model takes the closest backup point of the virtual machine disk as the core, organizes the backup points into a linear structure according to the backup time and policy relationship, and manages them in groups in a single-chain manner. However, in practical applications, diverse The backup strategy makes backup points have various forms of association, that is, multi-chain association characteristics, which leads to the following problems in the traditional backup point management model: single backup chain management, historical time points need to be manually managed and archived; backup Recovery takes a long time, the automatic deletion strategy is not flexible enough, and the disk space utilization is low, etc.

Method used

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  • Method, device, electronic equipment and medium for online incremental backup and restoration of virtual machine
  • Method, device, electronic equipment and medium for online incremental backup and restoration of virtual machine
  • Method, device, electronic equipment and medium for online incremental backup and restoration of virtual machine

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Embodiment 1

[0049] like Figure 1 to Figure 4 As shown, a method for locally storing an online incremental backup of a virtual machine in an embodiment of the present invention is introduced, and the method includes the following steps.

[0050] In step S101, an incremental file and location information of the backup node of the virtual machine disk at the current moment are generated through the external snapshot.

[0051] According to the backup task information, the incremental files from the previous backup time of all disks of the virtual machine to the current time are generated through the external snapshot generation interface of libvirt, and the location information of the incremental files (including the information of the host where the incremental files are located, the incremental file delta file path, the predecessor file of the incremental file) is sent to the data transmission module, and saved to the local storage.

[0052] A virtual machine contains one or more virtual ...

Embodiment 2

[0069] like Figure 5 As shown, a method for online recovery of a locally stored virtual machine in an embodiment of the present invention is introduced, and the method includes the following steps.

[0070] In step S201, a corresponding backup chain of the virtual machine disk is searched according to the restoration task information, and the backup chain is parsed to form a restoration chain of the virtual machine disk.

[0071] The backup node at the time to be restored performs the following operations to find the location information of the backup node of the virtual machine disk at the time to be restored; and obtains the preorder traversal sequence number lid and the node range sequence number tid of the backup node at the time to be restored according to the location information.

[0072] The incremental files of all related nodes are updated according to the recovery task information, and the related nodes are organized into a recovery chain of virtual machine disks. ...

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Abstract

The invention discloses a method and application for online incremental backup and recovery of a local storage virtual machine. The method includes the following steps: generating the incremental file and position information of the backup node at the current moment of the virtual machine disk through an external snapshot; according to the Send the incremental file to the specified location of the backup server for storage according to the location information; and organize the incremental file of the backup node of the virtual machine disk at each execution time into a backup chain and save it in the database. The method of online incremental backup of the local storage virtual machine can generate the incremental file and location information of the virtual machine disk at the backup time through the external snapshot. In the scenario of diversified backup strategies, the backup chain presents a forest structure, realizing multiple Scenario incremental backup effectively improves system disk space utilization and backup efficiency.

Description

technical field [0001] The present invention relates to the field of computers, in particular to a method and application for online incremental backup and recovery of locally stored virtual machines. Background technique [0002] With the expansion of the cloud platform, the cloud platform faces these challenges: the soaring amount of cloud storage data, the increasing requirements for the reliability of cloud platform data storage by enterprises and individual users, and the problems existing in the management of data storage and backup on the current cloud platform and the challenges it faces. [0003] Most of the existing virtual machine disk backups are proxy-based backup and recovery. Backup agent software needs to be installed in the virtual machine to realize the backup and recovery of virtual machine disk data, which not only affects the performance of the virtual machine, but also cannot guarantee the security of the virtual machine data. sex. Virtual machine dis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/14G06F8/658G06F9/455
CPCG06F11/1448G06F11/1469G06F8/658G06F9/45558G06F2009/45575G06F2009/45595
Inventor 汤星鲍国栋张程
Owner 江苏安超云软件有限公司
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