99.9% Up time
Yesterday I was recalling an article I read about some guy’s rant on up time. It was mocking those sites that claim 99.9% up time. Which made me think, how much downtime is that, really?
So, the basic calculation:
60 seconds X 60 minutes X 24 hours x 365 days
.1% downtime would equal 31536 seconds, or 8.76 hours.
Thats just a third of a day. That may not sound like much, or it may, depending your experience, your IT admin, your servers, but 8 hours in a power failure could mean big money losses for even a small company.
Ryan spoke of a report where they listed the downtime for the top 20 sites on the web.
Yahoo - zero downtown. None. Google, 7 minutes. I wonder what that cost them?
Up time is basically irrelevant. It’s cost per hour or minute in downtime that matters. How much would it cost you to be down, for say a week should be the major factor in the amount of money you put into solving the uptown equation.
on April 10th, 2007 at 11:59 pm
I host with Dreamhost and although I’ve been happy with almost all the service till now I am getting a bit sick of their recent downtime. It does really seem to be a recurring issue. They had a few hours down over Easter that was relatively out of their control (DDOS Attack) but there have been a few other occasions in the last 12 months which do seem neglectful. Although I don’t want to I am starting to glance my eye around looking for somebody that is rock solid for downtime. We’ll see how they go and if they can improve things then I’d love to stay but it is starting to wear a little thin at this point.
on April 14th, 2007 at 5:01 pm
Here’s the link to that report:
http://royal.pingdom.com/?p=116
I figure MySpace makes more than $3,000/hr on advertising revenue (maybe less, now that it’s spam heaven). Can you imagine how much they sweat when messing with servers?
@Frank: I’ve used hostgator for a long time now (including this blog). I’ve seen some delays on a shared server (3,000+ sites), but their CS is great and otherwise I’ve never had problems.
They also just released some new multi-IP stuff where you can request different C-classes for new websites!