Date: Tue, 9 Jul 2002 02:33:14 +0200 From: Bernd Walter <ticso@cicely5.cicely.de> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: Bernd Walter <ticso@cicely5.cicely.de>, Julian Elischer <julian@elischer.org>, Terry Lambert <tlambert2@mindspring.com>, Luigi Rizzo <rizzo@icir.org>, hackers@FreeBSD.ORG Subject: Re: offtopic: low level format of IDE drive. Message-ID: <20020709003313.GO94279@cicely5.cicely.de> In-Reply-To: <200207082340.g68Ne4uH048135@apollo.backplane.com> References: <3D2A06A9.2F3CB99C@mindspring.com> <Pine.BSF.4.21.0207081452330.29644-100000@InterJet.elischer.org> <20020708221804.GN94279@cicely5.cicely.de> <200207082340.g68Ne4uH048135@apollo.backplane.com>
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On Mon, Jul 08, 2002 at 04:40:04PM -0700, Matthew Dillon wrote: > > :> > Julian got struck by lightning; perhaps he will now stick to disks > :> > with built-in lightning rods (e.g. not succeptible to this failure), > :> > e.g. SCSI. > :> > :> This is an urban ledgend.. > : > :No - it's SCSI Specs. > :A SCSI Disk is required to savely finish the started sector even > :on powerloss. > :If all drives fullfill this requirement is another story. > : > :-- > :B.Walter COSMO-Project http://www.cosmo-project.de > > No, it's an urban legend. Someone actually buttonholed a Seagate > engineer a couple of years back and he said with absolute certainty > that a Seagate drive would lose up to two sectors, but not more > then that. After searching I've found the text I remembered in a german book describing SCSI :( But I have not found it in the ansi docs. Seems like I was just wrong and this is indeed a legend. Sorry for the missleading statement. > I've had direct experience with this. Seagate drives will indeed lose > up to two sectors if you are writing during a power loss... and this > is *GOOD* for the industry. Quantum drives (more direct experience > on my part) have been known to lose whole tracks and even multiple > tracks. Not loosing unrelated data realy is a big difference. -- B.Walter COSMO-Project http://www.cosmo-project.de ticso@cicely.de Usergroup info@cosmo-project.de To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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