How Many Nines? WTF?
| Availability (9s) | Yearly Downtime | Quarterly Downtime | Monthly Downtime | Weekly Downtime | Daily Downtime |
|---|
| 99.9% (3) | 8.69 hours | 2.17 hours | 43.43 minutes | 10.08 minutes | 1.43 minutes |
| 99.99% (4) | 52.60 minutes | 13.15 minutes | 4.38 minutes | 1.01 minutes | 8.64 seconds |
| 99.999% (5) | 5.26 minutes | 1.31 minutes | 26.30 seconds | 6.05 seconds | 864 milliseconds |
| 99.9999% (6) | 31.56 seconds | 7.89 seconds | 2.63 seconds | 604.8 milliseconds | 86.4 milliseconds |
| 99.99999% (7) | 3.16 seconds | 0.79 seconds | 262.98 milliseconds | 60.48 milliseconds | 8.64 milliseconds |
| 99.999999% (8) | 315.58 milliseconds | 78.89 milliseconds | 26.30 milliseconds | 6.05 milliseconds | 864 microseconds |
| 99.9999999% (9) | 31.56 milliseconds | 7.89 milliseconds | 2.63 milliseconds | 604.8 microseconds | 86.4 microseconds |