On Wednesday 14 January 2009 00:08:10 [email protected] wrote:
>  Actually, temperature has very little relationship with disk life, at
>
> > least when Google studied their consumer grade disk failure metrics.
> >
> > The details: http://research.google.com/archive/disk_failures.pdf
> >
> > Regards,
> >         Daniel
>
> Thanks for that link Daniel.  An interesting paper.  However, I don't
> know that I'd compare a server farm environment to home PCs.  My gut
> feeling from the tens of hard drive failures I've worked on is that
> close-stacking drives is a bad thing.  Maybe because through-ventilation
> in big home boxes is not as thorough as in rack box servers.
>
> Another bad thing is what happened to me a couple of days ago when the
> power supply variable speed fan went to low speed (not stopped) and I
> smelled the PC getting hot.  I removed a little control circuit board
> from inside the unit and the fan now runs at full speed permanently.
> Fortunately nothing died (so far).

Seagate published this 
http://www.seagate.com/content/docs/pdf/whitepaper/D2c_More_than_Interface_ATA_vs_SCSI_042003.pdf

It says multiple drives in close mechanical proximity WILL fail !

Like This: 
Drive1 seeks to track
That movement shakes Drive2 off track, so it corrects
THAT movement shakes Drive1 off track so it corrects
...

James
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