Method and system for realizing instant recovery of virtual machine through directory mapping

A directory and virtual machine technology, which is applied in the field of disaster recovery and backup, can solve the problems of data waste and storage, and achieve the effects of improving efficiency, reducing unnecessary data recovery and CPU resource occupation

Active Publication Date: 2020-04-28
INFORMATION2 SOFTWARE SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In terms of backup, users have to waste a lot of storage for retaining data at multiple full backup time p

Method used

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  • Method and system for realizing instant recovery of virtual machine through directory mapping
  • Method and system for realizing instant recovery of virtual machine through directory mapping
  • Method and system for realizing instant recovery of virtual machine through directory mapping

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Experimental program
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Embodiment

[0057] Figure 4 It is a flow chart of implementing virtual machine instant recovery through directory mapping in an embodiment of the present invention. In this embodiment, the fuse program is implemented based on the fuse mechanism, and two empty directories are created to name the target directory target directory (the target directory is used to place the incremental data generated during recovery) and the nfs directory, and the fuse program is first started to set the target directory target The directory is mapped to the nfs directory, and then connected to the esxi host through the nfs protocol. The fuse program scans the data in the target directory (target) and the full backup directory (version directory) to generate a corresponding cbt file. The cbt file is used for recording The address offset and data length of data stored in the disk.

[0058] When the virtual machine is started, the virtual machine sends a read operation, which carries the offset and offset len...

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Abstract

The invention discloses a method and a system for realizing instant recovery of a virtual machine through directory mapping. The method comprises the following steps of: step S1, enabling the host machine to adopt a fuse mechanism to create two empty directories, wherein the two catalogues are respectively named as a target catalogue and an nfs catalogue, the target directory is used for placing incremental data generated during recovery, mapping the target directory to an nfs directory in a mapping mode, starting an nfs protocol, sending the nfs directory to an exsi host, and a new virtual machine is established in the exsi host; s2, scanning data in the target directory and the full-standby directory by using a fuse mechanism so as to generate a corresponding cbt file; and S3, sending areading operation when the virtual machine is started, and searching matching in the cbt file according to the reading operation so as to find a corresponding data segment and return the correspondingdata segment to the virtual machine for instantaneous recovery.

Description

technical field [0001] The invention relates to the technical field of disaster recovery and backup, in particular to a method and system for realizing instant recovery of a virtual machine through directory mapping. Background technique [0002] In the era of cloud computing and big data, virtualization plays a very important role. Although virtualization has brought a disruptive revolution to the IT industry, virtualization has also brought a disruptive revolution to the backup and disaster recovery industry. The backup method in which the physical server is the backup object is no longer suitable for the current virtualization environment. The data volume in the virtualization environment is increasing faster than people imagine. How to protect such a huge data volume has become a new challenge for many backup vendors. to conquer the subject. [0003] Vmware provides a set of interface VADP (VMware vStorage API for Data Protection) for backup and recovery of virtual mach...

Claims

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Application Information

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IPC IPC(8): G06F9/455
CPCG06F9/45558G06F2009/45575Y02D10/00
Inventor 潘冠云杨杰苏亮彪
Owner INFORMATION2 SOFTWARE SHANGHAI
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