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Availability Formula?

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Bob Duncan
User offline. Last seen 20 years 13 weeks ago. Offline
Joined: 14 Mar 2004
Posts: 11
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I am trying to understand what the formula should be for calculating Availability Uptime for different numbers of hours and months.

i.e. for 28, 29, 30 and 31 days.

Each of them for 8 hours or a 24x7x365 calculation.

I was thinking of the formula:

Availability for the month = (No. of Days in that Month) * (Availability Percentage Level).

But how do I incorporate the No. of Hours into this & is it even correct?!