Availability Downtime Per Year (24x7x52)
99.000% 3 days, 15 hours, 36 Minutes
99.500% 1 day, 19 hours, 48 Minutes
99.900% 8 hours, 46 Minutes
99.950% 4 hours, 23 Minutes
99.990% 53 Minutes
99.999% 5 Minutes
100% The Holy Grail !!