Often we hear or request to keep services up & running for 99.999 time. How much maintenance window this gives if we have to maintain service uptime 99.999 time?
Its a simple math calculation ( 365 * 24 * 3600 ) = 31536000 seconds (not considering 365.25 or leap years)
To keep it 99.999%, we have a maintenance window 315.36 seconds, this gives roughly 5 minutes 15 seconds.
Seconds in an hour 3600
Seconds in a day 86,400
Seconds in a day 86,400
Seconds in a week (7 * 24 * 3600 ) = 604800
