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The calculation is an inclusive, yearly, uptime percentage. This is assuming no other downtime will occur during 2011. Additionally, this percentage is adequat
by yuvadam 16y ago
The calculation is an inclusive, yearly, uptime percentage. This is assuming no other downtime will occur during 2011.
Additionally, this percentage is adequate for the 365-subsequent-days credit calculation. It doesn't matter at which 365-day window you look, my calculation assumes no other downtime has occurred, nor will occur.
- jdp23 16y agoGot it. If that's what you're reporting, then you might want slightly different language: "have been up" is past tense, so implied (at least to me) that you were just talking about year-to-date.
- yuvadam 16y agoFair enough, will rephrase. Thanks!
- lobster_johnson 16y agoFor the purposes of claiming service credits from Amazon, the percentage given on your page is not necessarily useful. Amazon's uptime guarantee applies to the trailing 365 days. You can claim those service credits at any time. Thus, if Amazon had an incident 2 months ago and have another incident now, then your own window is the range [now - 1.year, now] and you figure that this calculates to a 99.8% downtime for you and claim your credit. Your percentage then necessarily goes to zero because your window restarts. But for everyone else who doesn't claim a credit, the window continues to roll forward.