On Apr 26, 2015, at 10:38 AM, Gene Heskett <[email protected]> wrote:
> How much power does it use if powered is applied but not enabled?  It 
> could well be that Seb's powering it from the same strip that switches 
> the computer on might be the only really workable solution. That I would 
> think would satisfy any legal requirements for energy conservation that 
> might exist in the users locale.
> 

It isn’t about saving power but about my design for the emergency stop 
circuitry. 

> I am likely one of a very few that leave my atom boxes on 24/7, based on 
> the theory that the most dangerous time for a hard drive is the low 
> speed where the heads don't fly on the film of moving air in the drive.  
> That is direct contact with the platters  which will enhance the rate at 
> which they fail, either from the heads and platters becoming so polished 
> they stick like Joes blocks and cannot get started, called stiction, or 
> one or the other galls and tears up the other. Classic head crash. By 
> the time I have 100,000 hours on a drive, it will often claim less than 
> 100 powerdown cycles.  An atom box powered up is less than 20 watts, no 
> measureable heating.


What’s a platter? ;-)  My systems of late have SSD.  No spinnie stuff.
-Tom

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