Ever wondered terminology of Number of 9's in SLA. See the actual downtime offered by multiple vendors in market.
Number of 9’s | Availability Percentage | Total Annual Downtime |
2 | 99% | 3 days, 15 hours |
3 | 99.90% | 8 hours, 45 minutes |
4 | 99.99% | 52 minutes, 34 seconds |
5 | 100.00% | 5 minutes, 15 seconds |
Hope this helps understanding SLA
