On 2018-04-22 05:39, J. P. Gilliver (John) wrote:
On 4/21/2018 12:09 AM, B00ze wrote:
Good day.
Got a 15 years old WD IDE hard drive, that was showing ZERO problems
in SMART data, suddenly can no longer calibrate (i.e. it can't read
anymore.) NOW the SMART data is showing something's wrong. Hard drive
"clicks" (heads go back and forth full disk) then quits trying. Have
another of the same model, but hesitant moving the platters myself;
apparently platters are not really "stuck" together and I could
mis-align them (rotate them in relation to each other) rendering the
whole thing un-readable. Was planning to move the data off but kept
Rather than move the platters, why not move the controller (from the
good drive to the dud), if you think that's what's faulty? Doing that
might also be possible without breaking the seal on the housings.
Yeah, I will try that first if I decide the recovery labs practice
extortion.
You can hear head movement, but can you hear platter rotation? They
might perhaps just be stuck. (I had that, but in my case one at least of
the heads had stuck to the platter - I think; after all the recommended
things [freezing, shaking in various ways, ...] I finally bit the bullet
and opened up the drive in a clean cabinet at work: I could see the
heads weren't in the park position. When I attempted to turn the pack
[the spindle took the same Torx driver as the screws holding the case
shut - don't know if that's always the case], I felt something unstick,
and the heads then were free. Fortunately, after putting it all back
together, I was able to recover 95% or more of the data, so it must have
only been a tiny spot-weld somewhere. [I considered the drive junk after
that.] Obviously not stuck heads in your case if you can hear them
moving, but the platters might be stuck rotation-wise? Just a guess.)
It spins fine, no SMART issues there, but it can't read.
I'm also curious about how they recover drives if not by using
another of the same model (where they hell how they going to find
one as old as mine, and can they really keep one of each model of
ALL drives?) If you can enlighten me on that too, would be great.
Thank you.
Best Regards,
I would imagine there are "families" of drives, so they can use common
controllers - possibly using a master, versatile, controller. (I also
suspect that a _lot_ of the companies do little more than we do, other
than perhaps having "clean" facilities so they can open up to see if
faults like I had are the problem.)
Yeah, I read in a link someone posted in this thread, all they need is a
drive in the same family, not necessarily the exact same model. But will
they have such an old drive family around? I DO have another drive
anyway, they could use that. As far as what they do, they can do more
than we can (like Paul posted, they can address the drive via a serial
interface) but I don't think they have a programmable "master" drive
that can read any platter, any sector size, any track size, etc.
Regards,
--
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oO-( )-Oo Windows error 04 Erroneous error, nothing wrong.