From owner-freebsd-questions@freebsd.org  Thu Aug 27 12:07:55 2015
Return-Path: <owner-freebsd-questions@freebsd.org>
Delivered-To: freebsd-questions@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 7EAFD9C4AEE
 for <freebsd-questions@mailman.ysv.freebsd.org>;
 Thu, 27 Aug 2015 12:07:55 +0000 (UTC)
 (envelope-from quartz@sneakertech.com)
Received: from douhisi.pair.com (douhisi.pair.com [209.68.5.179])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id 5BFFB1DEA
 for <freebsd-questions@freebsd.org>; Thu, 27 Aug 2015 12:07:55 +0000 (UTC)
 (envelope-from quartz@sneakertech.com)
Received: from [10.2.2.1] (pool-173-48-121-235.bstnma.fios.verizon.net
 [173.48.121.235])
 by douhisi.pair.com (Postfix) with ESMTPSA id 5911C3F6EF
 for <freebsd-questions@freebsd.org>; Thu, 27 Aug 2015 08:07:54 -0400 (EDT)
Message-ID: <55DEFD99.6080802@sneakertech.com>
Date: Thu, 27 Aug 2015 08:07:53 -0400
From: Quartz <quartz@sneakertech.com>
MIME-Version: 1.0
To: freebsd-questions@freebsd.org
Subject: Re: Stop using a SATA drive
References: <CAPi0psvT5aaHR7kU+28qwVDdutyMn7LjhFUGZRWctz4gGfgvgw@mail.gmail.com>
 <20150824214252.53aa04c6.freebsd@edvax.de>
 <CAPi0psu5pP_Z7FcR8h5cQAZiZyDmQTKWzFx-17tUEV5g-+7hjw@mail.gmail.com>
 <55DEFA0F.9000900@sneakertech.com> <55DEFC1A.4040806@infracaninophile.co.uk>
In-Reply-To: <55DEFC1A.4040806@infracaninophile.co.uk>
Content-Type: text/plain; charset=windows-1252; format=flowed
Content-Transfer-Encoding: 7bit
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.20
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-questions>, 
 <mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions/>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
 <mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 27 Aug 2015 12:07:55 -0000

> Electric motors will act as generators: the trick with modern drives is
> that they use the inertia of the spinning disk platters to generate
> sufficient power to move the heads to the parked position when the
> external power goes out.

Hmm.... ok, that's different from how it was explained to me. I was also 
told that this procedure was faintly harder on the drive than issuing a 
real 'park' command (in the sense that it's basically slamming the 
emergency stop button). What's your take on that?