| 非相似余度计算机系统及其可靠性分析 |
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| 引用本文： | 臧红伟,韩炜,高德远. 非相似余度计算机系统及其可靠性分析[J]. 哈尔滨工业大学学报, 2008, 40(3): 492-494 |
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| 作者姓名： | 臧红伟 韩炜 高德远 |
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| 作者单位： | 西北工业大学计算机学院,西安,710072;中国航空计算技术研究所,西安,710068 |
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| 摘 要： | 为了避免共性故障导致的严重后果,研究了非相似余度计算机系统结构,使用不同的、完全独立的设计组,使用不同的开发语言、不同的开发工具,并在不同的处理器上运行,达到避免共性故障,提高安全关键系统的任务可靠性目的,应用一种简化的马尔可夫模型对其进行了可靠性分析.试验结果表明,非相似余度计算机系统(DRCS)结构提高了系统可靠性,MTBF达到9 000 h以上.
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| 关 键 词： | 非相似余度 容错计算机 可靠性 马尔可夫模型 |
| 文章编号： | 0367-6234(2008)03-0492-03 |
| 修稿时间： | 2005-03-10 |
Dissimilar redundancy computer system and reliability analysis |
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| ZANG Hong-wei,HAN Wei,GAO De-yuan. Dissimilar redundancy computer system and reliability analysis[J]. Journal of Harbin Institute of Technology, 2008, 40(3): 492-494 |
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| Authors: | ZANG Hong-wei HAN Wei GAO De-yuan |
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| Affiliation: | 1(1.School of Computer Science and Engineering,Northwestern Polytechnical University,Xi’an 710072,China;2.Aeronautical Computing Technique Institute,Xi’an 710068,China) |
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| Abstract: | The architecture of the Dissimilar Redundancy Computer System(DRCS) was researched.In order to avoid the correlated faults and increase reliability of critical task,independent design principle that different design teams use different program languages,development tools and different instruction sets was studied and described.Its reliability was analyzed with a Markov process model,and results showed that the DRCS has high reliability and DRCS’s MTBF is more than 9 000 h. |
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| Keywords: | dissimilar redundancy fault tolerant computer reliability Markov process model |
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