Question: what is mttf mttr mtbf?
Answer: MTBF, MTTR, MTTF & FIT Explanation of Terms Mean Time To Repair (MTTR) is the time needed to repair a failed hardware module. ... Mean Time To Failure (MTTF) is a basic measure of reliability for non-repairable systems. It is the mean time expected until the first failure of a piece of equipment.