From owner-freebsd-current Sun Dec 9 23: 8:31 2001 Delivered-To: freebsd-current@freebsd.org Received: from apollo.backplane.com (apollo.backplane.com [216.240.41.2]) by hub.freebsd.org (Postfix) with ESMTP id 7CC0537B41B; Sun, 9 Dec 2001 23:08:28 -0800 (PST) Received: (from dillon@localhost) by apollo.backplane.com (8.11.6/8.9.1) id fBA77rJ44369; Sun, 9 Dec 2001 23:07:53 -0800 (PST) (envelope-from dillon) Date: Sun, 9 Dec 2001 23:07:53 -0800 (PST) From: Matthew Dillon Message-Id: <200112100707.fBA77rJ44369@apollo.backplane.com> To: Julian Elischer Cc: Terry Lambert , Greg Lehey , "Daniel O'Connor" , sthaug@nethelp.no, freebsd-current@FreeBSD.ORG, j@uriah.heep.sax.de, joerg_wunsch@uriah.heep.sax.de Subject: Re: "Dangerously dedicated" yet again (was: cvs commit: src/sys/kern subr_diskmbr.c) References: Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG :> etc... So apparently my warning about these drives in 'man tuning' is :> still appropriate :-) :> :> -Matt :> :> :> > IBM DTLA drives are known to rotate fast enough near the spindle :> :> > that the sustained write speed exceeds the ability of the controller :> :> > electronics to keep up, and results in crap being written to disk. : : :I would adssume it actually the tracks FURTHEREST from the spindle.. This is the first I've heard of the alleged controller electronics performance problem. My understanding is that the failures are due to manufacturing problems, but people have apparently experienced software lockups as well. What is not in doubt is that there have been some severe problems with this model. -Matt To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message