Cost benefit analysis of a one server two dissimilar unit system subject to different repair strategies

Deals with the cost benefit analysis of a one server two dissimilar unit cold standby system in which we consider two different repair policies, namely: (1) policy 1: retain the repair facility throughout; (2) policy 2: call for the repair facility only when both the units are in failed condition and retain it until no unit is waiting for repair. States that the life time and repair time of the units are random variables with arbitrary distributions. Compares the expected profit and availability of the system under policy 1 and policy 2 and concludes whether policy 1 is better than policy 2 or vice versa. Numerical results pertaining to the availability of the system and a comparative study for the expected profit under policy 1 and policy 2 when both the failure and repair time distributions are exponential have been analysed.