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Availability is a ratio used to estimate operational ability. When the Mean Time To Failure (MTTF) of a system is 140 hours and the Mean Time To Repair (MTTR) is 14 hours, what is the availability?

Answer :

Final answer:

Availability, a key metric in system reliability, is calculated using Mean Time To Failure (MTTF) and Mean Time To Repair (MTTR). In this scenario, with an MTTF of 140 hours and MTTR of 14 hours, the system availability calculates to approximately 90.9%.

Explanation:

In the context of system reliability in the Computers and Technology field, availability is a key metric calculated using MTTF (Mean Time To Failure) and MTTR (Mean Time To Repair). The formula for calculating system availability is Availability = MTTF / (MTTF + MTTR).

In this case, the student provided that the Mean Time To Failure is 140 hours and Mean Time To Repair is 14 hours. So, by using the formula:
Availability = 140 / (140 + 14) = 140 / 154 = 0.909, or 90.9%.

Therefore, the availability of the system is approximately 90.9% given the provided MTTF and MTTR values.

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