Comments on: Social Networking Uptime http://elliottback.com/wp/social-networking-uptime/ Internet & Technology Sun, 22 Nov 2009 02:40:56 -0400 http://wordpress.org/?v=2.8.4 hourly 1 By: Julian http://elliottback.com/wp/social-networking-uptime/#comment-2167948 Julian Mon, 22 Dec 2008 00:03:08 +0000 http://elliottback.com/wp/archives/2008/02/26/social-networking-uptime/#comment-2167948 There appears to be some confusion here with the meaning of "three nines".<br><br>Three nines means 99.9% uptime. So, Yahoo and Myspace achieved three nines.<br><br>Your link to a blog discussing Amazon's S3 service suggests that they have a THREE nines (99.9%) guarantee, refunding even more if they don't even achieve TWO nines (99%). Your mention of 99.99% doesn't seem to be part of the guarantee. There appears to be some confusion here with the meaning of “three nines”.

Three nines means 99.9% uptime. So, Yahoo and Myspace achieved three nines.

Your link to a blog discussing Amazon's S3 service suggests that they have a THREE nines (99.9%) guarantee, refunding even more if they don't even achieve TWO nines (99%). Your mention of 99.99% doesn't seem to be part of the guarantee.

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