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一、引言 伴随着计算机的产生,容错技术在不断发展,过去计算机可靠性的提高,主要是采用避错技术,在机器的设计生产过程中对元器件的质量进行严格把关,以使产品能满足所规定的可靠性标准。 而采用容错技术则允许系统在出现某些特定硬件故障或软件错误时,系统仍然能够执行规定的一组程序(或算法),或者说程序不会因系统中的故障而中止或被修改,并且执行结果也不包含系统中故障所引起的错误而继续正常运行,同时容错技术还可以降低对元器件的质量要求。 二、容错计算基本技术 容错基本技术本质上是冗余及其管理、故障检测与诊断和系统状态的维
I. Introduction Along with the computer, fault-tolerant technology continues to evolve, in the past to improve the reliability of the computer, the main error-avoidance technology used in the design and manufacture of machinery in the quality of components strictly to enable the product to meet The required reliability standards. Fault tolerant techniques allow the system to still be able to execute a defined set of programs (or algorithms) in the event of a specific hardware failure or software error, or the program will not be stopped or changed due to a failure in the system, and The results do not contain errors caused by system failures and continue normal operation, while fault-tolerant technology can also reduce the quality requirements of components. Second, the basic techniques of fault-tolerant computing Fault-tolerant basic technology is essentially redundant and its management, fault detection and diagnosis and system status of the dimension