A server has a Mean Time Between Failures (MTBF) of 50,000 hours and a Mean Time To Repair (MTTR) of 4 hours. What is the availability of the server expressed as a percentage?Group of answer choices99.98%99.6%99.92%99.992%99.8%
Question
A server has a Mean Time Between Failures (MTBF) of 50,000 hours and a Mean Time To Repair (MTTR) of 4 hours. What is the availability of the server expressed as a percentage?Group of answer choices99.98%99.6%99.92%99.992%99.8%
Solution
The availability of a server can be calculated using the formula:
Availability = MTBF / (MTBF + MTTR)
Where: MTBF (Mean Time Between Failures) is the average time between system breakdowns. MTTR (Mean Time To Repair) is the average time taken to repair the system.
In this case, the MTBF is 50,000 hours and the MTTR is 4 hours.
So, the availability would be:
Availability = 50,000 / (50,000 + 4) = 0.99992003198
To express this as a percentage, we multiply by 100:
Availability = 0.99992003198 * 100 = 99.992%
So, the availability of the server is 99.992%.
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