Date: Thu, 5 Mar 2009 21:07:07 +0100 From: Joerg Sonnenberger <joerg@britannica.bec.de> To: freebsd-hackers@freebsd.org Subject: Re: Spin down HDD after disk sync or before power off Message-ID: <20090305200706.GA1790@britannica.bec.de> In-Reply-To: <Pine.GSO.4.64.0903051131530.24456@zeno.ucsd.edu> References: <200903050758.n257wod8088426@lurza.secnetix.de> <49B02211.1010809@abitos.org> <Pine.GSO.4.64.0903051131530.24456@zeno.ucsd.edu>
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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
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