Calculating network availability?

Associate
Joined
16 Dec 2009
Posts
723
Location
Bolton
Hi,

I'm struggling with my assignment I have to work out the downtime for the (year,month,week and day). I've been looking around online for the formula to work it out but every site I find assumes the network will be running 24 hours per day.

Here are the "specs"

12 hours per day 7 days per week at 99.999% availability.

Can anyone tell me the formal to work this out.

regards -Skeng
 
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