Date: Thu, 5 Mar 2009 15:25:17 +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: <20090305142517.GA2773@britannica.bec.de> In-Reply-To: <200903050758.n257wod8088426@lurza.secnetix.de> References: <20090304195614.GA179@britannica.bec.de> <200903050758.n257wod8088426@lurza.secnetix.de>
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On Thu, Mar 05, 2009 at 08:58:50AM +0100, Oliver Fromme wrote: > > This is not true. Many hard disks don't like having to do an emergency > > shutdown as it affects the disk life time negatively. That's what > > happens if you poweroff the machine when the disks are still spinning. > > Can you point to any authoritative information (URL) about > that claim, such as vendor specs, white paper or similar? Not without digging. NetBSD PR 21531 had a reference, but that is dead nowadays. Joerg
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