<div class="gmail_quote">On Wed, Feb 2, 2011 at 12:10 PM, Brian Warner <span dir="ltr"><<a href="mailto:warner@lothar.com">warner@lothar.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div class="im">Note that it also gives up reliability: according to my math, 5-of-10 is</div>
much much better than 1-of-2 when the servers are good (say >90%<br>
availability). (on the other hand, 1-of-2 is much better when the<br>
servers are bad).</blockquote><div><br></div><div>Break-even for those two configurations is when server reliability is at 60.7%. Above that, 5-of-10 is better, below that, 1-of-2 is better.</div></div><br>-- <br>Shawn<br>