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Control method and control system for data backup and recovery in virtual machine file system

A technology of file system and data backup, which is applied in the direction of data error detection, program control device, and response error generation, which can solve metadata corruption, file system prompt inconsistency, and file system difficult to repair elements. Data structure and other issues

Inactive Publication Date: 2022-08-05
GUANGDONG EFLYCLOUD COMPUTING CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Under abnormal circumstances (such as downtime), the file system is likely to have metadata damage, causing the file system to prompt an inconsistent error, and the distributed storage system (ceph) stores in the absence of metadata backup, resulting in existing The filesystem has difficulty repairing corrupted metadata structures

Method used

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  • Control method and control system for data backup and recovery in virtual machine file system
  • Control method and control system for data backup and recovery in virtual machine file system
  • Control method and control system for data backup and recovery in virtual machine file system

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Embodiment

[0018] see Figure 1 to Figure 5 , a control method for data backup and recovery in a virtual machine file system, the method comprising:

[0019] S11: Check the integrity of the file system based on the daemon, and collect metadata for the file system;

[0020] In the specific implementation process of the present invention, the specific steps can be:

[0021] S111: The daemon cyclically checks the file system according to the first preset time, and evaluates the integrity of the file system;

[0022] S122: If the integrity of the file system reaches a preset integrity threshold, the file system is in a normal state;

[0023] S123: When the file system is in a normal state, the daemon collects metadata in the file system according to a second preset time, and performs metadata package management.

[0024] Among them, the daemon checks the integrity of the file system and collects metadata of the file system, so the daemon can check the file system and collect the metadata ...

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Abstract

The invention discloses a control method and control system for data backup and recovery in a virtual machine file system, and the control method for data backup and recovery in the virtual machine file system comprises the steps: checking the integrity of the file system based on a daemon, and carrying out the metadata collection of the file system; obtaining metadata in the file system; inputting the metadata into a metadata space of a distributed storage system through the daemon to form backup data; if the file system is displayed to be abnormal in the inspection process of the daemon, triggering the daemon to repair the file system; the metadata space of the distributed storage system inputs backup data towards the daemon; and repairing the abnormal position of the file system based on the backup data.

Description

technical field [0001] The present invention relates to the technical field of virtual machines, in particular to a control method and control system for data backup and recovery in a virtual machine file system. Background technique [0002] With the development of science and technology, virtual machines are widely used in hosts, and data is transmitted through virtualization technology. The virtual machine has a built-in file system and a daemon (qga), and the virtual system (qemu) is connected with the daemon ( qga) communication to obtain the internal information of the virtual machine. At this time, the operating system of the virtual machine processes file read and write operations through the file system, and the read and write data is stored in the distributed storage system (ceph) through the virtual system (qemu). [0003] Under abnormal circumstances (such as downtime), the file system is likely to have metadata corruption, resulting in inconsistent errors in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06G06F9/455G06F11/14
CPCG06F3/067G06F3/0667G06F3/0658G06F3/0607G06F9/45558G06F11/1448
Inventor 吴日明史伟
Owner GUANGDONG EFLYCLOUD COMPUTING CO LTD
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