What is 99% uptime in a month?
What is 99% uptime in a month?
What does availability/uptime mean in the real world?
Availability %
Downtime per year
Downtime per month*
99%
3.65 days
7.20 hours
99.5%
1.83 days
3.60 hours
99.8%
17.52 hours
86.23 minutes
99.9% (“three nines”)
8.76 hours
43.2 minutes
What does availability/uptime mean in the real world?
| Availability % | Downtime per year | Downtime per month* |
|---|---|---|
| 99% | 3.65 days | 7.20 hours |
| 99.5% | 1.83 days | 3.60 hours |
| 99.8% | 17.52 hours | 86.23 minutes |
| 99.9% (“three nines”) | 8.76 hours | 43.2 minutes |
What is uptime availability?
“Uptime” or “Availability” is the percentage of time that a system is fully operational. For example, if a system operates for only 100 hours per week, its availability is 100/168 = 60%. Availability is normally expressed in 9’s.
What is 99.9 uptime in a month?
Percentage calculation
| Availability % | Downtime per year | Downtime per month |
|---|---|---|
| 99.8% (“two and seven eighths nines”) | 17.53 hours | 87.66 minutes |
| 99.9% (“three nines”) | 8.77 hours | 43.83 minutes |
| 99.95% (“three and a half nines”) | 4.38 hours | 21.92 minutes |
| 99.99% (“four nines”) | 52.60 minutes | 4.38 minutes |
What is uptime in maintenance?
In simplistic terms, uptime is the time in which a machine (asset) is in operation. This means that while an asset is operational, it is able to produce output – or in the case of most businesses – revenue-producing activities.
