Date: Mon, 18 Sep 2017 19:54:42 +0100 From: Steve Burton <steve@sliderule.demon.co.uk> To: freebsd-questions@freebsd.org Subject: Re: Disk not spinning up Message-ID: <fbba8982-90c0-0304-9377-5f31cdda87f8@sliderule.demon.co.uk> In-Reply-To: <59BEDB12.2090600@gmail.com> References: <20170917214321.8fd2157b.freebsd@edvax.de> <59BEDB12.2090600@gmail.com>
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On 17/09/2017 21:29, Ernie Luzar wrote: > Polytropon wrote: >> This is more a hardware question than a FreeBSD question, but >> as FreeBSD is involved, I think it's worth being asked here >> due to the experienced, intelligent, creative and (in an >> entirely positive sense) "unusual" participants on this list. >> >> I have a harddisk Quantum Fireball with ca. 1 GB capacity >> (yes, that's GB, not TB). It's a (P)ATA / "IDE" disk with >> a 40 pin connector for a flat cable, configured as master. >> >> The disk has been in use in a system that I built around 1995 >> and which I occasionaly used over the years. The last system >> activation was yesterday. Today, the disk just didn't spin up >> again. >> >> After extracting the disk from the system and using my fine >> "forensics adaptor" to power it, it made short cranking sounds >> (ca. 1 per second) and short beeps from time to time, then went >> silent. I can repeat this. >> >> Now I probably did something stupid, but a radio amateur friend >> had success with this approach on a 40 MB disk (yes, that's MB, >> not GB). I _opened_ the disk (with gloves, face mask and cap, >> just to minimize the dust falling from my head into the disk) >> and saw the central motor "rotate" clockwise and counterclockwise >> for less than 1/4 rotation. I tried to "help" the disk spin up >> as you can imagine, but it would not do so. >> >> My question: >> >> Had anyone had success getting such a disk work again? Is it >> worth searching my "museum" for a replacement controller? Or >> does it look more like a motor failure than a controller failure? >> >> I can read the disk with my "forensics adapter" like this (tested >> with the other 1.2 GB disk from the same system): >> >> $ sudo mount -t msdosfs -o ro /dev/da3s1 /mnt >> >> That's the FreeBSD-related part in this question. But of course, >> a disk not spinning up won't be recognized by the system. I'd like >> to at least access the disk once to copy as much as I can. >> >> Are there any ideas, options, chances, suggestions or experiments >> other than "throw it out of the window"? :-) >> >> >> > > The bearing the disk platters rotate on has lubricant that with usage > and time has dried out somewhat. Taping the top side of the drive on a > flat surface some times works. > > The best approach is to per-warn up the drive hardware before trying > to power it on. Put a bear light bulb or shine a flood light from a > close distance on to the metal covered side, IE; not the circuit board > side, until it gets almost to hot to touch. Then power it on and and > away you go almost every time this happens. > > Good luck. > > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to > "freebsd-questions-unsubscribe@freebsd.org" > . > You'll need more than luck if you're trying to take a light bulb from a bear:) Steve.
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