Implementation of a Transient-Fault-Tolerance Scheme on DEOS - A Technology Transfer from an Academic System to an Industrial System
نویسندگان
چکیده
Fault tolerance is important in real-time systems where correct execution of tasks must satisfy certain temporal constraints. Since transient faults occur more frequently than permanent faults, this paper focuses on a transient-faulttolerance algorithm, FTRMS. The FORTS group of the University of Pittsburgh derived the FTRMS algorithm and implemented it on FT-RT-Mach. The same mechanism is transferred to a commercial system, DEOS, at the Honeywell Technology Center. By describing and contrasting the implementation of FTRMS on the two systems, this paper illustrates the difference between an academic system and an industrial system. An application example shows the effect of the new transient fault tolerance scheme on the system.
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