What does 99.9% uptime mean?
What does 99.9% uptime mean?
Uptime is the amount of time that a service is available and operational. Uptime is generally the most important metric for a website, online service or web based provider and is expressed as a percentage such as ‘99.9%’. For example a 99.9% uptime equates to 43 minutes and 50 seconds of downtime.
Is 99% uptime good?
Service Level Agreements from companies usually explains that the product they are supporting will be up or available for X% of the time. 90% is good, 99% is even better, and some go on up to 99.99% or higher, but what does that mean for a business in plain terms?
How many hours is 99.9 uptime?
Uptime and downtime with 99.9 % SLA Monthly: 43m 49s. Quarterly: 2h 11m 29s. Yearly: 8h 45m 56s.
What is the expected downtime for an SLA of 99.95 %?
SLA level of 99.95 % uptime/availability results in the following periods of allowed downtime/unavailability: Daily: 43s. Weekly: 5m 2s. Monthly: 21m 54s.
What is uptime guarantee?
5.5. 1 Whinstone guarantees an uptime percentage (percentage of time to maintain uninterrupted performance of the total Customer Equipment) of [***]% and no more than [***] days of planned downtime due to loss of power, construction, or network outage.
What is the maximum allowable downtime in a year if availability is 99%?
Guaranteed uptime is expressed as SLA level and is generally the most important metric to measure the quality of a hosting provider. An SLA level of 99.99% for example equates to 52 minutes and 36 seconds of downtime per year.
What is 99% uptime in a month?
SLA level of 99 % uptime/availability results in the following periods of allowed downtime/unavailability: Daily: 14m 24s. Weekly: 1h 40m 48s. Monthly: 7h 18m 17s.
What does 99.99 availability correspond to?
Percentage calculation
| Availability % | Downtime per year | Downtime per month |
|---|---|---|
| 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 |
| 99.995% (“four and a half nines”) | 26.30 minutes | 2.19 minutes |
How many minutes per month of downtime is 99.99 availability?
Four nines means 99.99 percent, five nines means 99.999 percent, and so on….What Does ‘Four Nines’ Mean for Azure Uptime?
| Uptime | Downtime Per Month | Downtime Per Year |
|---|---|---|
| 99.9% | 43m | 8h 45m |
| 99.95% | 21m | 4h 22m |
| 99.99% | 4m | 52m |
How many downtime hours per year will be covered with an SLA of 99.9% uptime?
What Does ‘Four Nines’ Mean for Azure Uptime?
| Uptime | Downtime Per Month | Downtime Per Year |
|---|---|---|
| 99% | 7h 18m | 3d 15h |
| 99.9% | 43m | 8h 45m |
| 99.95% | 21m | 4h 22m |
| 99.99% | 4m | 52m |
What uptime is good?
The industry generally recognizes this as very reliable uptime. A step above, 99.99%, or “four nines,” as is considered excellent uptime.
Is 100 uptime possible?
In a perfect world, 100% uptime can be achieved, but we do not live in a perfect world. As long as the possibility for network failure exists then one can safely say 100% uptime doesn’t exist. That’s not to say that they’re aren’t enough safeguards in place to practically state one operates with 100% uptime.
