From owner-freebsd-hackers Thu Jan 2 11:05:00 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.4/8.8.4) id LAA23910 for hackers-outgoing; Thu, 2 Jan 1997 11:05:00 -0800 (PST) Received: from Campino.Informatik.RWTH-Aachen.DE (campino.Informatik.RWTH-Aachen.DE [137.226.116.240]) by freefall.freebsd.org (8.8.4/8.8.4) with ESMTP id LAA23902 for ; Thu, 2 Jan 1997 11:04:57 -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 UAA02808; Thu, 2 Jan 1997 20:06:55 +0100 (MET) Received: (from kuku@localhost) by gilberto.physik.rwth-aachen.de (8.8.3/8.6.9) id UAA15982; Thu, 2 Jan 1997 20:23:43 +0100 (MET) From: Christoph Kukulies Message-Id: <199701021923.UAA15982@gilberto.physik.rwth-aachen.de> Subject: Re: advice sought - Quantum 2GB Atlas broken In-Reply-To: from "Brian N. Handy" at "Jan 2, 97 10:33:27 am" To: handy@sag.space.lockheed.com (Brian N. Handy) Date: Thu, 2 Jan 1997 20:23:43 +0100 (MET) Cc: kuku@gilberto.physik.rwth-aachen.de, freebsd-hackers@freefall.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-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk > > >Coming back from a short holiday I powered on a P90 machine with > >(among other IDE disks) a Quantum 2GB ATLAS XP32150 and the SCSI disks > >saluted with a continous one second interval clicking noise. > >It spins up but the head seems to do some wild moves followed by a > >'chuck-clack' with the NCR PCI BIOS not coming to an end of the probing > >phase. At least the NCR BIOS sits there for half an hour already > >and that noise is repeating unchanged. > > I had this happen to one of these drives I purchased from Rod Grimes. > What this is, if I remember correctly, is some sort of thermal calibration > thingy that ... uh ... isn't. Interesting that you are saying that (thermal calibration - not Rod Grimes :-) (I think Rod is not responsible in any way for faulty Quantum drives) 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. > I think it's a mechanical problem, not a PCB problem. I don't believe > swapping out the electronics here is going to save you. You might ask > Rod, or the Quantum Gods. But it sounds like if you want that data you're > going to have to send it to a disk-drive restoration outfit. ($2,500 and > three days and you're back in business...) > > Good luck, > > Brian > > --Chris Christoph P. U. Kukulies kuku@gil.physik.rwth-aachen.de