一、什么是计算机容错系统 随着计算机应用领域的日益扩大以及实时处理和实时控制系统的发展,对计算机系统的可靠性要求越来越高。例如在航空和航天控制系统、铁路交通控制系统、银行和证券交易数据处理系统中,哪怕是一个细微的故障,也可能带来灾难性的后果,造成许多不必要的和无可挽回的损失。 所谓计算机系统的可靠性是指在给定的时间内计算机系统能正常运行的概率。提高计算机系统的可靠性一般有两条途径:一条是提高元器件的质量,严格地老化筛选,改进工艺结构和完善逻辑设计;另一条是发展容错技术。因为组成计算机系统的元器件不 First, what is a computer fault-tolerant system With the growing field of computer applications and real-time processing and real-time control system development, the reliability of computer systems are increasingly demanding. For example, even subtle failures in aeronautical and spaceflight control systems, railway traffic control systems, banking and stock exchange data processing systems can have disastrous consequences, causing many unnecessary and irreparable losses. The so-called reliability of the computer system refers to the probability that the computer system can operate normally in a given period of time. Improve the reliability of computer systems generally have two ways: one is to improve the quality of components, strict aging screening, improve the process structure and improve the logic design; the other is the development of fault-tolerant technology. Because the components of computer systems do not