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Uptime
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If you're looking for a web server and someone is quoting you 99.99% uptime for a server, or even 99.999% ... well, here's the maths:
| % Available
| Downtime/year
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| 98%
| 7.30 days
|
| 99%
| 87.6 hrs
|
| 99.9%
| 8.76 hrs
|
| 99.99%
| 53 mins
|
| 99.999%
| 5.25 mins
|
| 99.9999%
| 31 secs
|
| 99.99999%
| 3.1 secs
|
What do you think the chances are?
Comment on this article
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