[152202] in North American Network Operators' Group
Re: Most energy efficient (home) setup
daemon@ATHENA.MIT.EDU (Jeroen van Aart)
Wed Apr 18 15:36:42 2012
Date: Wed, 18 Apr 2012 12:35:16 -0700
From: Jeroen van Aart <jeroen@mompl.net>
To: NANOG list <nanog@nanog.org>
In-Reply-To: <1334525166.3887.1012.camel@pc2>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Laurent GUERBY wrote:
> Do you have reference to recent papers with experimental data about non
> ECC memory errors? It should be fairly easy to do
Maybe this provides some information:
http://en.wikipedia.org/wiki/ECC_memory#Problem_background
"Work published between 2007 and 2009 showed widely varying error rates
with over 7 orders of magnitude difference, ranging from 10−10−10−17
error/bit·h, roughly one bit error, per hour, per gigabyte of memory to
one bit error, per century, per gigabyte of memory.[2][4][5] A very
large-scale study based on Google's very large number of servers was
presented at the SIGMETRICS/Performance’09 conference.[4] The actual
error rate found was several orders of magnitude higher than previous
small-scale or laboratory studies, with 25,000 to 70,000 errors per
billion device hours per megabit (about 3–10×10−9 error/bit·h), and more
than 8% of DIMM memory modules affected by errors per year."
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