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Some key technologies of deploying High Availability Redundant Cluster System and Dependability Analysis

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  • Received:2008-08-13 Revised:2008-10-16 Online:2009-04-22 Published:2009-02-01
  • Contact: HAO li_Rui

一种高可用性冗余集群的关键技术及可信性分析

郝丽蕊 薛弘晔 陈艳   

  1. 桂林航天高等专科学校 西安科技大学 计算机系 桂林航天高等专科学校
  • 通讯作者: 郝丽蕊

Abstract: Some key technologies for deploying high availability cluster system were discussed in this paper. An adaptive fault-tolerance method based on task table was presented. The designing idea of the adaptive fault-tolerance algorithm and the implementation of the algorithm were described in detail. Finally, the dependability model with Petri-net was also presented. According to the dependability analysis of the high availability cluster, it shows that the cluster system in this paper has high availability to be used in critical application field.

Key words: Task allocting table, high availability cluster, task migrating, petri-net model, k-out-of-n redundant system, dependability

摘要: 介绍了高可用性冗余集群系统的一些关键技术,提出了一种基于任务表的自适应容错算法,对算法的设计思想和具体实现进行了详细阐述。最后建立了系统随机Petri-net模型,对系统进行可信性分析,经计算分析表明系统满足实际高可用性要求。

关键词: 任务分配表, 高可用集群, 任务迁移, Petri-net模型, k/n表决冗余系统, 可信性