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Date: Thu, 5 Mar 2009 21:07:07 +0100
From: Joerg Sonnenberger <joerg@britannica.bec.de>
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Subject: Re: Spin down HDD after disk sync or before power off
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On Thu, Mar 05, 2009 at 11:49:10AM -0800, Nate Eldredge wrote:
> This makes sense in some ways.  Suppose the drive is attached to a weird  
> ATA controller that FreeBSD doesn't know anything about.  (Maybe it's 
> used by the other system in a dual-boot setup.)  There's no way that 
> FreeBSD could send it a power-down sequence, but the BIOS could.

As long as you can send a ATA command directly to the disk, you can spin
it down.

Joerg