Reliability analysis of warm standby redundant repairable system without being repaired “as good as new”

This paper studies a warm standby redundant repairable systems with two different units, a repairman who can take multiple vacations and a completely reliable transfer switch. In the system, we assume that unit 1 has priority in use and follows a geometric process after repair, while unit 2 can be repaired as good as new after repair. By using the supplementary variables approach and the generalized Markov process method, some important reliability indexes are obtained.