What to expect after a cooling failure
jra at baylink.com
Wed Jul 10 04:04:23 UTC 2013
----- Original Message -----
> From: "Erik Levinson" <erik.levinson at uberflip.com>
> For those who have gone through such events in the past, what can one
> expect in terms of long-term impact...should we expect some premature
> component failures? Does anyone have any stats to share?
If the HDDs were spinning while above rated maximum ambient intake temp,
*especially* if they're not *right out front in the intake path* (is
anything not built that way anymore? Yeah; the back side of 45-drive
Supermicro racks, among other things), you should probably plan on doing
a preemptive replacement cycle, or at the very least, pay *very* close
attention to smartctld, and have a good stock of pre-trayed replacements.
Remember that you may fall in the RAID Hole if you wait for failures,
and hence lose data which isn't backed up anyway -- if more drives in a
raid group fail *during rebuilds*, you're essentially screwed.
If your raid groups were properly dispersed across drive build dates, then
this will probably be *slightly* less dangerous, but still.
Also watch bearing-type fans.
Jay R. Ashworth Baylink jra at baylink.com
Designer The Things I Think RFC 2100
Ashworth & Associates http://baylink.pitas.com 2000 Land Rover DII
St Petersburg FL USA #natog +1 727 647 1274
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