谈系统可靠性和可用性的几个实际问题

本文是以某工程通信系统建设实践为基础,通过试验、试用统计数据分析,对用国产电子设备组成的系统,就其系统可靠性和可用性方面存在的几个问题作了讨论。在系统可靠性方面,论述了采用分组冗余技术进行系统设计的必要性和合理性。对系统可用性,从广义上作了简述,并通过该工程建设,说明各种因素对系统可用性的影响及应注意的问题,可供同类系统工程参考。

ON SYSTEM RELIABILITY AND AVAILABILITY

This paper, on the basis of the practice in building an engineering communication system,reviews several problems in association with reliability and avail ability of communication systems which are made up from domestic electronic products. This review is based on analysing the statistical data gained from tech nical experiments and uses the view point of system engineering.In the aspect of system reliability, the necessity and reasonableness of using grouped redundant technology in system design are explained With the use of this technology,a high reliable system can be formed with domestic electronic products.In the aspect of system availability, various factors which affect the syetem availability,such as system equipments, environmental conditions, maintenances, ect.are discussed. Several measares dealing with these factors are described.Finally, some suggestions on improving domestic electronic products,designing and building system engineering suitble to China's conditions are proposed.