Rollback과 Roll-forward 기법을 사용한 TMR 고장의 시간여분 복구 정책 = A Time-Redundant Recovery Policy of Failures Using Rollback and Roll-forward

다국어 초록 (Multilingual Abstract)

In the paper we propose two recovery methods by adopting a rollback and/or roll-forward technique(s) to recover TMR failures in a TMR (structured) system that is the simplest spatial redundancy. This technique is apparently effective to recovering TMR failures primarily caused by transient fault. The proposed policies carry out few reconfigurations at the cost of (minimal) time-overhead needed for those time-redundant schemes. The optimal checkpoint-interval vectors are derived for both methods through the likelihoods of all (possible) states of the system is well as the total execution-time. Consequently, the effectiveness of our proposed policies is validated through certain numerical examples and simulations.