Data backup method of virtual machine, computer equipment and storage medium

A technology of data backup and virtual machine, which is applied in the direction of data error detection and electrical digital data processing in the direction of calculation and calculation redundancy, which can solve the problems of low data recovery efficiency and time-consuming, and avoid the number of snapshots Too much, avoid transition waste, reduce the effect of time spent

Active Publication Date: 2022-05-31
武汉吧哒科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the number of snapshots is too large, the data recovery process will take too much time, resulting in low efficiency of data recovery

Method used

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  • Data backup method of virtual machine, computer equipment and storage medium
  • Data backup method of virtual machine, computer equipment and storage medium
  • Data backup method of virtual machine, computer equipment and storage medium

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Embodiment Construction

[0056]The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0057] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation shown in the drawings Or positional relationship is only for the convenience of describing the present application and simplifying ...

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Abstract

The invention discloses a data backup method for a virtual machine, computer equipment and a storage medium, and the method comprises the steps: obtaining the total number of historical snapshots having an incremental backup relationship with the last historical snapshot when detecting that a backup instruction for the virtual machine is triggered; if the total number of the historical snapshots is smaller than the preset number, an incremental snapshot having an incremental backup relationship with the last historical snapshot is generated; and if the total number of the historical snapshots is greater than or equal to the preset number, generating a full-amount snapshot. According to the embodiment of the invention, when backup is needed, the quantity of the historical snapshot data having the incremental backup relationship with the last historical snapshot is obtained, and incremental backup is performed when the total quantity of the historical snapshots is small, so that excessive waste of backup storage space is avoided, and when the total quantity of the historical snapshots is large, full-quantity backup is adopted, so that the backup efficiency is improved. The situation that the number of snapshots of incremental backup is too large is avoided, so that the time spent in the data recovery process is shortened, and the data recovery efficiency of the backup data is improved.

Description

technical field [0001] The present application relates to the technical field of data backup, and in particular to a data backup method for a virtual machine, computer equipment and storage media. Background technique [0002] For virtual machine data in cloud platforms, servers and other devices, snapshot (Snapshot) is an effective way to prevent data loss. Snapshots are designed for on-demand backup and recovery of virtual machine data. When application failures or file damage occur on cloud platforms, servers and other equipment, data recovery can be performed quickly, and the data can be restored to the state at a certain available point in time. [0003] At present, the virtual machine data is generally backed up by means of full backup or incremental backup alone. When full backup is used, there will be a large amount of duplicate data between snapshots, resulting in excessive waste of backup storage space. When incremental backup is used, although there is no dupli...

Claims

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Application Information

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IPC IPC(8): G06F9/455G06F11/14
CPCG06F9/45558G06F11/1448G06F11/1469G06F2009/4557G06F2009/45575
Inventor 陈立军陈涛钟楷锋
Owner 武汉吧哒科技股份有限公司
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