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Hello guys,

I am studying mttf and would like a clarification. Greatly appreciate if someone could guide me.

Ok so I have a server(a) which is running/in operation 10000 hours for 1 year.

Now I have the hours at which it crashed and the number of hours it crashed. That is:

crashed at hour:|| Up again after (hours):

2350. || 3

3460. || 7

5560. || 2

Now to find the mttf i added up the hours crashed that is 12, I then did 10000-12 which gives me the up time I suppose?

Then to find mttf I did (10000-12)/3 as there are three breakdown.

Is this correct?

I used the formula mttf = total uptime/number of breakdown

I am studying mttf and would like a clarification. Greatly appreciate if someone could guide me.

Ok so I have a server(a) which is running/in operation 10000 hours for 1 year.

Now I have the hours at which it crashed and the number of hours it crashed. That is:

crashed at hour:|| Up again after (hours):

2350. || 3

3460. || 7

5560. || 2

Now to find the mttf i added up the hours crashed that is 12, I then did 10000-12 which gives me the up time I suppose?

Then to find mttf I did (10000-12)/3 as there are three breakdown.

Is this correct?

I used the formula mttf = total uptime/number of breakdown

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