What is mean time between failures?
MTBF (mean time between failures) is the average time between repairable failures of a technology product. The metric is used to track both the availability and reliability of a product. The higher the time between failure, the more reliable the system.
MTBF calculation Formula:
MTBF Example :
Over a period of time the following information is available:
Total Production Time (PT): 1,240 minutes
Total Downtime (DT): 1.5 hours (watch the unit of measures)
Number of Failures (F): 25
Determine the MTBF:
The first step is to determine the Uptime (UT) which = PT - DT
Uptime (UT) = 1,240 minutes - 90 minutes = 1,150 minutes
MTBF = UT / F = 1,150 / 25 = 46 minutes