Asymmetric software triple-computer hot backup fault-tolerant method

An asymmetric structure and software technology, applied in the field of computer fault tolerance, can solve the problems of complex design and development process and high cost, and achieve the effect of reducing performance overhead, high cost and improving overall performance

Inactive Publication Date: 2010-11-03
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hot standby systems usually need to customize dedicated hardware circuits for specific applications, and design supporting management software for this purpose, so the design and development process is more complicated and the cost is higher
In addition, commercial computer systems and general-purpose operating systems or embedded

Method used

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  • Asymmetric software triple-computer hot backup fault-tolerant method
  • Asymmetric software triple-computer hot backup fault-tolerant method
  • Asymmetric software triple-computer hot backup fault-tolerant method

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Embodiment Construction

[0033] In the following specific implementation examples, the present invention will be further described in detail in conjunction with the accompanying drawings.

[0034] Such as figure 1 As shown, the system of the asymmetrical three-computer hot standby fault-tolerant method designed by the present invention is structurally divided into 5 modules: the local host virtual machine management module 1 located on the local physical host, and the remote host located on the remote physical host The virtual machine management module 2, the working domain module 3 and the local backup domain module 4 located on the local physical host, and the remote backup domain module 5 located on the remote physical host. Among them, the local host virtual machine management module 1 also includes the following main functional modules: a scheduling management module 11, a local state synchronization module 12, a first remote state synchronization module 13, a first health monitoring and fault re...

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Abstract

The invention provides an asymmetric software triple-computer hot backup fault-tolerant method. Both a local physical host and a remote physical host are loaded with virtual machine systems, simultaneously, a local backup domain and a remote backup domain are provided for user application and the operating environment, the user application and the operating environment are encapsulated into a work domain, the local backup domain and the work domain are run in the same physical host, the remote backup domain is run in another physical host, and the two physical hosts are connected with each other through the network. As the remote backup operation is completed by a specific processor, the executing process does not affect the running of the local work domain at all. The method greatly reduces the performance cost caused by synchronization of main and standby states at the same time of guaranteeing the reliability of the system, and simultaneously, the deployment of the fault-tolerant system is more flexible and has better expandability.

Description

technical field [0001] The invention relates to a hot backup fault-tolerant method, in particular to a multi-core platform-oriented three-computer hot backup fault-tolerant method realized by virtualization technology, which belongs to the technical field of computer fault tolerance. Background technique [0002] With the wide application of computer technology and the rapid increase in complexity, the reliability of system operation has attracted more and more attention, especially in some safety-critical areas, any small failure may lead to catastrophic consequences. Fault-tolerant technology is one of the most powerful means to build a high-reliability system. It refers to the sum of technologies that maintain the normal operation of the system when the computer produces abnormal behavior due to factors such as device aging, wrong input, external environmental influence, and original design errors. The purpose is to improve the reliability of the system. [0003] Under n...

Claims

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Application Information

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IPC IPC(8): G06F11/14G06F9/455
Inventor 张炯龙翔胡彦彦高小鹏白跃斌
Owner BEIHANG UNIV
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