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.
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 than9 000 h.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2008年第3期492-494,共3页
Journal of Harbin Institute of Technology
关键词
非相似余度
容错计算机
可靠性
马尔可夫模型
dissimilar redundancy
fault tolerant computer
reliability
Markov process model
