Doug Ledford wrote:
Anyway, it might or might not hurt the drives to run them well below their designed operating temperature, I don't have schematics and materials lists in front of me to tell for sure. But second guessing mechanical engineers that likely have compensated for thermal issues at a given, specific common operating temperature is usually risky. Most people think "Heat kills" and therefore like to keep things as cool as possible. For mechanical devices anyway, it's not so much that heat kills, as it is operating outside of the designed temperature range, either above or below, that reduces overall life expectancy. Keep your drives from overheating, but don't try to freeze them would be my advice.
Indeed. This paper
http://www.hitachigst.com/hdd/technolo/drivetemp/drivetemp.htm
shows some of the factors you mention and for what it's worth Hitachi's recommended operating range is 5 - 55 C for their 15K SCSI.
Regards,
Richard
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