【摘要】 应用在金融、电信等关键业务领域中的高端容错计算机具有事务处理能力极强、可用性高、可靠性高等特点。有关此类计算机开展故障分布研究对于故障预测、系统维修,保障系统高可用运行具有重要意义。提出一种基于极值理论的故障分布研究方法,将高端容错计算机故障发生事件作为稀有事件,集中关注数据的尾部特征。与传统方式的故障分布研究方法相比,省去了数据分布形式的先验假设,更适用于小样本的情况。更多还原

【Abstract】 Used in the financial,telecommunications and other critical areas,high- end fault- tolerant computers should have strong transaction- processing capability and high availability,high reliability characteristic. To carry out research on failure distribution of such kind of computers is important for the failure prediction,system maintenance,and ensuring systems high- available running. This paper presents a failure distribution research methods based on extreme value theory, which makes the high- end fault- tolerant computer failure event as a rare event,focusing on the tail of the data characteristics. Compare with traditional methods,this method can eliminate the priori assumptions of data distribution and be more suitable for the case of small samples.更多还原