面向修复的计算技术分析  

Analysis of Recovery Oriented-Computing

作　　者：黄志军[1] 曾斌[1] 赵皑[1] 

机构地区：[1]海军工程大学计算机系,武汉430033

出　　处：《计算机工程与应用》2004年第17期85-88,共4页Computer Engineering and Applications

摘　　要：面向修复计算把硬件故障、软件错误和操作员失误当作不可避免的事实,研究的是面对事实的处理技术。它着眼于通过降低MTTR而提高系统的可用性,同时减少系统的总拥有成本。该文介绍了面向修复计算的目的及定义,并从认知心理学的角度讨论了人类出错的本质原因,最后从系统结构和操作系统的角度详细论述了面向修复计算的5个典型技术。Recovery Oriented Computing(ROC)takes the perspective that hardware faults,software bugs,and operator errors are facts to be coped with,not problems to be solved.By concentrating on Mean Time to Repair(MTTR)rather than Mean Time to Failure(MTTF),ROC reduces recovery time and thus offers higher availability.Since a large portion of system administration is dealing with failures,ROC may also reduce total cost of ownership.In addition to giving the motivation and definition of ROC,we shows that the leading cause of outages is operator error.We also demonstrate five ROC techniques in detail,which we hope will influence designers of architectures and operating systems.

关 键 词：面向修复计算 总拥有成本 回溯重启 可回退系统 

分 类 号：TP301.5[自动化与计算机技术—计算机系统结构]