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2 votes
2 votes
A signal processor software is expected to operate for 91.25 days after repair, and the mean software repair time is expected to be 5 minutes. Then, the availability of the software is:

(1) 96.9862%

(2) 97.9862%

(3) 98.9962%

(4) 99.9962%

2 Answers

Best answer
3 votes
3 votes

Total Uptime = 91.25 days(Given)

Total Downtime = 5 mins. =5/60 hrs. = 0.083 hrs. (Given)

Now substitute these values in the expression:

Availability = Total uptime/(total uptime+total downtime)

Availability = {91.25*24/(91.25*24+0.083)*100}.

                 = (2190/ (2190+0.083))*100

                 = (2190/2190.083)*100

                 = 0.9996211481*100

                 = 99.9962%

Answer is option (4)

selected by
1 votes
1 votes
Total uptime=91.25*24 (In hours)

Total downtime=5/60(In hours)=0.083 hours

Availability = Total uptime/(total uptime+total downtime)
By substituting the values we have,

{91.25*24/(91.25*24+0.083)*100}.
After solving this expression the answer evaluates to option D).
edited by

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