Development Of A Digitalization System For Evaluating The Reliability Of A Computer System
Аннотация
The work is devoted to the study of the reliability of a computer system, which is characterized by their ability to function in case of accidental failures of elements. Deterministic and probabilistic reliability indicators used at the stages of analysis and synthesis of computer systems are considered. A probabilistic model of the unreliability of a computer system is proposed, based on the assumption of the independence of failures of nodes and channels. A random graph is considered, where edges are excluded with a given probability and formulas are given for calculating the probability of connectivity, the average number of connectivity components, and the average path length. The parameters characterizing the bandwidth of a computer system and the probabilistic nature of the information flow are also analyzed. It is noted that the calculation of structural parameters and reliability indicators is necessary for the synthesis of computer systems and their control in conditions of damage. Special attention is paid to theoretical results related to the calculation of vertex and edge connectivity, as well as the assessment of the structural reliability of computer systems through the probability of connectivity. For large computer systems, the complexity of calculations is emphasized due to the need to iterate through states, which makes the probability of connectivity a key criterion for evaluating reliability.