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a recent isp issued caused me to remember just exactly what “uptime” means...here's a little taste:

guarantee %allowable downtime annually
99.9999holy crap < 1 minute (six sigma)
99.9995.2 minutes (famous "5 nines")
99.9952.5 minutes
99.9525.6 minutes (8.76 hours)
995256 minutes (87.6 hours)
if you are "lucky" to have a provider giving you a 90% guarantee, congrats, you could be down for an acceptable 36.5 days per year

Please enjoy some of these other recent posts...

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