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Comment by ramon156

10 hours ago

Its a joke

>=90 -> one 9 >=99 -> two 9's >=99.9 -> three 9's

Also, you can think of e.g. five 9's as five minutes of downtime per year

1 comment

ramon156

Reply

raffael_de  9 hours ago

got the joke. but it drove home that i wasn't sure how it's counted. thx

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