On Fri, 19 Mar 2010, Aryeh Gregor wrote:
On Fri, Mar 19, 2010 at 4:15 AM, John Robinson
<john.robinson@xxxxxxxxxxxxxxxx> wrote:
Do you have a reference for this? Most drives' operating temperature range
is specified up to 55°C, sometimes higher for enterprise drives, without any
indication (apart from common sense perhaps) that running them this hot
reduces lifespan.
Google's study of >100,000 disks over 9 months or so
<http://labs.google.com/papers/disk_failures.html> suggests that
hotter drives don't fail much more often:
". . . failures do not increase when the average temperature
increases. In fact, there is a clear trend showing that lower
temperatures are associated with higher failure rates. Only at very
high temperatures is there a slight reversal of this trend." (page 5
of PDF)
Do check out figure 5 though, I wouldn't run the drives hotter than
40-45°C based on that which does seem to indicate that hot drives don't
last as long. But then again, so would running them at <30°C...
/Mattias Wadenstein
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