Question.
5 nines = 99.999%.
That means 0.001% downtime.
So, 60min times 7.5hrs a day, times 250days a year equals 112500 minutes in total, times 0.001 equals 112.5 minutes a year.
To me, that seems like almost 2hrs downtime a year, and the SLA is back up within 4 years.
Am I missing something here?
Slashdot Mirror
Except basic math and a percentage sign, I mean.
Question. 5 nines = 99.999%. That means 0.001% downtime. So, 60min times 7.5hrs a day, times 250days a year equals 112500 minutes in total, times 0.001 equals 112.5 minutes a year. To me, that seems like almost 2hrs downtime a year, and the SLA is back up within 4 years. Am I missing something here?