Availability problems

Dr Peadar Grant

Data Centre Infrastructure
  1. Calculate the reliability, R, of a system at time t = 20days assuming that it experiences 0.1 failures per day.
  2. A system has 5 failures over the course of a year. Calculate the MTBF in days.
  3. A system has an MTBF of 150 days. How many faults may be expected over the course of two years.
  4. Calculate the inherent availability, Ai, of a system with a mean time between failure of 120 days and a mean time to repair of 12 hours.