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Continuous data protection method of application programming interface for IO filtering

A technology of continuous data protection and programming interface, applied in the direction of program control design, program control device, electronic digital data processing, etc., which can solve the problems of complex interpretation file system and multiple operating system versions

Active Publication Date: 2020-05-08
NANJING UNARY INFORMATION TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many file systems in Windows system and Linux system, explaining the file system is too complicated
[0006] (3) There are too many versions of the operating system

Method used

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  • Continuous data protection method of application programming interface for IO filtering
  • Continuous data protection method of application programming interface for IO filtering
  • Continuous data protection method of application programming interface for IO filtering

Examples

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Embodiment Construction

[0036] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0037] see figure 1 , a continuous data protection method for an application programming interface for IO filtering of the present invention, specifically comprising the following steps:

[0038] (1) Use the iSCSI protocol to mount the virtual disk device on the server to the ESXi host. The specific implementation steps are as follows:

[0039] (1-1) The client agent program queries the virtual machine and virtual machine disk information on the host, and sends the queried information to the server through the TCP / IP socket.

[0040] (1-2) The server agent program of the server creates a virtual disk device on the server according to the received virtual machine disk information, and maps the virtual disk to an iSCSI target (iSCSI target).

[0...

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PUM

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Abstract

The invention discloses a continuous data protection method of an application programming interface for IO filtering. The continuous data protection method comprises the following steps: creating a virtual machine on a host; installing a VIB plug-in program on the host; mounting a virtual disk device on the server on the host; carrying out full-amount and incremental backup on a virtual machine disk on the host; capturing an I / O request sent to a virtual machine disk by a guest operating system of a virtual machine on a host in real time, and writing the captured I / O request into a virtual disk mounted on the host by a server; and for the I / O request which cannot be processed in time, recording the I / O request in the bitmap file, and then synchronizing the I / O request of the virtual machine disk recorded in the bitmap file to the virtual disk mounted on the host by the server. According to the method, only the VIB plug-in program needs to be installed on the host and a virtual machineneeds to be newly built, the plug-in works in the user space of the host, and system kernel crash of the host cannot be caused by faults of the plug-in.

Description

technical field [0001] The invention belongs to the technical field of data storage and backup, and be specifically related to any virtual machine GuestOS (guest operating system) that captures the virtual machine on the ESXi mainframe with VMware VAIO (vSphere APIsfor I / O Filtering) and sends to VMDK (Virtual Machine Disk, virtual disk). Continuous data protection method for I / O requests. Background technique [0002] With the exponential growth of user data, users need to use more and more server equipment to calculate and store data. In this case, the operating costs of users continue to increase. In order to reduce operating costs, more and more users use virtual machines on virtualization platforms to calculate and store data. VMware ESXi is an industry-leading server virtualization platform. Users can create different virtual machines on the VMware ESXi virtualization platform according to their own needs. [0003] With the continuous improvement of informatization l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/455
CPCG06F9/45558G06F2009/45579G06F2009/45587
Inventor 谢伟生张有成姚崎丁红李海鹏许萍萍
Owner NANJING UNARY INFORMATION TECH
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