[Eug-lug] Damaged hard drive

[LinuxRocks!]

If you have a spare power supply that you can hook up where its not so 
noisy, you could re-build the drives, then hook them up, and check that 
the drive is doing normal things. During the power on sequence, you 
typicly hear your drives spin up, unpark heads, and you can hear it 
making clicking sounds. This all happens before the computers bios finds 
the drives.  The computer has to wait for the drives to do thier thing 
before it can detect drive info.

You can also figure out if the drive is spinning up by holding it when 
you turn it on. 

Jamie

On Mon, May 21, 2007 at 01:28:05PM -0700, abrown at peak.org wrote:
> Date: Mon, 21 May 2007 13:28:05 -0700 (PDT)
> Subject: Re: [Eug-lug] Damaged hard drive
> From: abrown at peak.org
> To: "Eugene Unix and Gnu/Linux User Group" <euglug at euglug.org>
> 
> You mean the one with bad electronics or the one with bad mech?
> Both drives are non-working.
> 
> My system is so loud that it would be hard to hear anything like
> this.
> 
> In any case, the BIOS fails to detect that anything is connected
> when I connect any part of the drive that I am trying to recover
> (bad electronics).  I don't think a frozen platter would cause
> the electronics to fail to ID.
> --
> Allen
> 
> > Hrm... does the non-working drive make normal clicky noise when you
> > hook it up?
> > Im just guessing, but I think your heads may be bonded to the platters
> > :D Ive seen this on my old 135MB seagate. It was pretty comical. After
> > seagate replaced my drive, they didtn ask for this one back, so I took
> > the cover off, and plugged it in. You could see the spindle try to turn
> > and the the heads were bonded to the surface so i would kind of bounce a
> > little. I used some dental tweezers to pry the heads, which was like
> > braking a spot weld... it was pretty funny.
> >
> > Jamie
> >
> > On Sun, May 20, 2007 at 09:38:27PM -0700, abrown at peak.org wrote:
> >> Date: Sun, 20 May 2007 21:38:27 -0700 (PDT)
> >> Subject: Re: [Eug-lug] Damaged hard drive
> >> From: abrown at peak.org
> >> To: "Eugene Unix and Gnu/Linux User Group" <euglug at euglug.org>
> >> Cc: "Eugene Unix and Gnu/Linux User Group" <euglug at euglug.org>
> >>
> >> Alas, the operation was not successful.  In fact the good
> >> electronics board flatlines when connected to my mech.
> >> It doesn't even show up in the BIOS.  But when I put that
> >> electronics board back on the original mech, it does show
> >> up in the BIOS.
> >>
> >> This makes me think my theory was wrong.  It is not an
> >> ESD zap.  I now think there is a short in the aux electronics
> >> in the mech assembly.  That short drags down the main
> >> electronics board, possibly thru the power supply.
> >>
> >> Unfortunately, that is a lot more difficult to repair.  It
> >> would be sealed in with the platters.  I wonder how long a drive
> >> would function if I opened it outside of a cleanroom.  :-)
> >> --
> >> Allen
> >>
> >> >> Alan wrote:
> >> >>> abrown at peak.org wrote:
> >> >>>> Oops!  My bad.  It's not an IBM.  Its a WD2500 Cavaliar.
> >> >>>> WD2500JB-00EVA0 dated 16 Dec 2003.
> >> >>>> Anybody have one of those I can trade?
> >> >>>> --
> >> >>>
> >> >>> I might actually. Let me check tonight and get back to you.
> >> >>>
> >> >>> -ajb
> >> >>
> >> >>
> >> >> I actually have two of them:
> >> >> sprocket:~# cat /proc/ide/hdb/model
> >> >> WDC WD2500JB-00EVA0
> >> >> sprocket:~# cat /proc/ide/hdc/model
> >> >> WDC WD2500JB-00EVA0
> >> >> sprocket:~#
> >> >>
> >> >> However, they are both in use right now.
> >> >> If you'd really like to try them, I can probably make one available
> >> to
> >> >> you. Have to do some re-jiggering though.
> >> >>
> >> >> -ajb
> >> >
> >> > Thank you.  I got one from Quentin yesterday.  This one's mech is
> >> > dead, making it a very appropriate victim.  I'm doing the brain
> >> > transplant now, so I should very soon know if the operation was
> >> > successful.  Bwah, ha, ha!
> >> > --
> >> > Allen
> >> > Igor, raise the platform!
> >>
> >>
> >>
> >>
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> 
> 
> 
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