Date: Sun, 14 Mar 2004 11:47:17 +0100 From: "Christoph P. Kukulies" <kuku@kukulies.org> To: freebsd-hackers@freebsd.org Subject: Re: off topic - disk crash Message-ID: <20040314104717.GA16158@gilberto.physik.rwth-aachen.de> In-Reply-To: <xzpk71qaz93.fsf@dwp.des.no> References: <20040311153709.AD00216A4D6@hub.freebsd.org> <20040311174030.GB8190@tikitechnologies.com> <xzpk71qaz93.fsf@dwp.des.no>
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On Fri, Mar 12, 2004 at 03:58:16PM +0100, Dag-Erling Smørgrav wrote: > Clifton Royston <cliftonr@tikitechnologies.com> writes: > > > Today an important (no backup of course) 46 GB IBM Deskstar > > > IDE disk crashed. > > This specific line of drives is infamous for a failure rate that's at > > least a full order of magnitude above the industry average for ATA > > drives. Google a bit for it. > > Not the entire DeskStar line, just the 75GXP series. I still have > several 16Gs and at least one 60GXP that have never given me any > trouble, and they were fast and silent for their time, head and > shoulders ahead of the competition. These days I mostly buy WD... > > > > The disk boots into FreeBSD but already at power on time the disk does > > > seek retries or some recalibration noise. > > Also known as the "click of death"... Thanks for all the helpful tips so far. It is a DLTA 307045 (3.5") Don't know whether this is a 75GXP. I'm getting either these: ad2: TIMEOUT - READ_DMA retrying (2 retries left) LBA=30583 Which don't stop the dd process. And these, ad2: FAILURE - READ_DMA status=51<READY, DSC, ERROR> error=40<UNCORRECTABLE> LBA=9156 leading to termination. Also the transfer rate is terribly slow: (80 KB/s) I was able to save 18 MB (of 46 GB) (not much so far) Any other suggestions? Could I increase the retry count? Or enforce continuation even in case of hard errors? So that with a bit of luck I could find the FS later in the dump and be able to restore at least partially some files? -- Chris Christoph P. U. Kukulies kuku_at_physik.rwth-aachen.de
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