From owner-freebsd-scsi Wed Feb 9 11:53:29 2000 Delivered-To: freebsd-scsi@freebsd.org Received: from uni4nn.gn.iaf.nl (osmium.gn.iaf.nl [193.67.144.12]) by builder.freebsd.org (Postfix) with ESMTP id 5398F4369; Wed, 9 Feb 2000 11:53:25 -0800 (PST) Received: from yedi.iaf.nl (uucp@localhost) by uni4nn.gn.iaf.nl (8.9.2/8.9.2) with UUCP id UAA23335; Wed, 9 Feb 2000 20:44:16 +0100 (MET) Received: (from wilko@localhost) by yedi.iaf.nl (8.9.3/8.9.3) id UAA56296; Wed, 9 Feb 2000 20:13:17 +0100 (CET) (envelope-from wilko) Date: Wed, 9 Feb 2000 20:13:17 +0100 From: Wilko Bulte To: Mike Smith Cc: scsi@FreeBSD.ORG Subject: Re: Recovering SCSI disk contents the evil way? Message-ID: <20000209201317.A56232@yedi.iaf.nl> References: <200002090341.TAA77935@mass.cdrom.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0i In-Reply-To: <200002090341.TAA77935@mass.cdrom.com>; from msmith@FreeBSD.ORG on Tue, Feb 08, 2000 at 07:41:12PM -0800 X-OS: FreeBSD yedi.iaf.nl 3.4-STABLE FreeBSD 3.4-STABLE X-PGP: finger wilko@freebsd.org Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Tue, Feb 08, 2000 at 07:41:12PM -0800, Mike Smith wrote: > > We're trying to recover the contents of the CCD array that was in use on > hub (yes, this should involve "restore from backup", but certain backup > issues are precluding this). > > The disk in question is an IBM DCAS-34330; it's looking pretty sick in > that it's not able to correctly print its version string when probed, > _but_, the loader is able to correctly read the first few sectors to get > the disklabel off it. > > Unfortunately, we then lose because the 'da' driver wants to try to read > the disk's capacity, and that fails. Long shot: this sounds like broken electronics. Any chance you can transplant the PCB from a working drive (identical model) to the HDA of the broken one? This trick once worked for me. If you have bad head amplifiers in the HDA you're toast obviously, but in that case the s/w approach will be doomed too. Alternatively buy the IBM storage guru's in Almeda a beer... (?) Wilko -- Wilko Bulte Arnhem, The Netherlands WWW : http://www.tcja.nl To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message