Issue No.05 - May (1975 vol.24)
B.R. Borgerson , Sperry Research Center
A model for analyzing the reliability of gracefully degrading and standby-sparing computer systems is developed. The basis of the model is the identification of four distinct causes of crashes: time-domain multiple faults, resource exhaustion, space-domain multiple faults, and solitary faults. Expressions are developed for each of these crash-causing mechanisms and for their interrelationship. The model is then demonstrated by using it to analyze the reliability of a gracefully degrading computer system called PRIME.
Fault tolerance, gracefully degrading, PRIME, reliability, resource exhaustion, solitary faults, space-domain multiple faults, standby sparing, time-domain multiple faults.
B.R. Borgerson, R.F. Freitas, "A Reliability Model for Gracefully Degrading and Standby-Sparing Systems", IEEE Transactions on Computers, vol.24, no. 5, pp. 517-525, May 1975, doi:10.1109/T-C.1975.224255