From owner-freebsd-scsi Fri Jan 3 02:14:20 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.4/8.8.4) id CAA11760 for freebsd-scsi-outgoing; Fri, 3 Jan 1997 02:14:20 -0800 (PST) Received: from who.cdrom.com (who.cdrom.com [204.216.27.3]) by freefall.freebsd.org (8.8.4/8.8.4) with ESMTP id CAA11755 for ; Fri, 3 Jan 1997 02:14:18 -0800 (PST) Received: from Campino.Informatik.RWTH-Aachen.DE (campino.Informatik.RWTH-Aachen.DE [137.226.116.240]) by who.cdrom.com (8.7.5/8.6.11) with ESMTP id CAA01944 for ; Fri, 3 Jan 1997 02:14:17 -0800 (PST) Received: from gilberto.physik.rwth-aachen.de (gilberto.physik.rwth-aachen.de [137.226.31.2]) by Campino.Informatik.RWTH-Aachen.DE (RBI-Z-5/8.6.12) with ESMTP id LAA16322; Fri, 3 Jan 1997 11:13:50 +0100 (MET) Received: (from kuku@localhost) by gilberto.physik.rwth-aachen.de (8.8.3/8.6.9) id LAA18567; Fri, 3 Jan 1997 11:30:46 +0100 (MET) From: Christoph Kukulies Message-Id: <199701031030.LAA18567@gilberto.physik.rwth-aachen.de> Subject: Re: advice sought - Quantum 2GB Atlas broken In-Reply-To: <199701022101.QAA23157@hda.hda.com> from Peter Dufault at "Jan 2, 97 04:01:01 pm" To: dufault@hda.com (Peter Dufault) Date: Fri, 3 Jan 1997 11:30:46 +0100 (MET) Cc: kuku@gilberto.physik.rwth-aachen.de, scsi@freebsd.org Reply-To: Christoph Kukulies X-Mailer: ELM [version 2.4ME+ PL28 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-scsi@freebsd.org X-Loop: FreeBSD.org Precedence: bulk > > When I was out for that 6 days vacation over Chrismas and New Year > > I switched off that machine - only to do my wife a favor because > > she always asks me "must these computers run all over the night and day" > > and lowered the room temperature which may well have been as low as > > 10 Degrees Celsius (em er, where is my K&R book ... 50 Degrees Fahrenheit) > > when I came back. I switched on the computer and the disaster began. > > Boot off another disk to the boot prompt, power on the drive, > and see if the system can coax a little more info out of the drive > about what its problem is. It seems when drive warms up (heats up) the chuck-cluck disappears. I was able to even mount the drive but trying to dd or tar it results in an I/O-error. While it is cold the FreeBSD ncr driver loops with continuous command failures. But the diagnose that it might have had a head crash seems to me the most probable. Maybe I will be able to recover some data. Thanks anyway for all the interesting advice and stories about temperature drift, CPU fans, and all that :-) > > Peter > > -- > Peter Dufault (dufault@hda.com) Realtime Machine Control and Simulation > HD Associates, Inc. Voice: 508 433 6936 > --Chris Christoph P. U. Kukulies kuku@gil.physik.rwth-aachen.de