Re: SCSI vs SATA

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On Thu, 5 Apr 2007, Scott Marlowe wrote:

On Thu, 2007-04-05 at 14:30, James Mansion wrote:
Server drives are generally more tolerant of higher temperatures.  I.e.
the failure rate for consumer and server class HDs may be about the same
at 40 degrees C, but by the time the internal case temps get up to 60-70
degrees C, the consumer grade drives will likely be failing at a much
higher rate, whether they're working hard or not.

Can you cite any statistical evidence for this?

Logic?

Mechanical devices have decreasing MTBF when run in hotter environments,
often at non-linear rates.

this I will agree with.

Server class drives are designed with a longer lifespan in mind.

Server class hard drives are rated at higher temperatures than desktop
drives.

these two I question.

David Lang


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