Fwd: Drive crash

[Stephen]

something to try looking at if you want a possible in house solution
is Test Disk, this is a satisfyingly functional program.

http://www.cgsecurity.org/wiki/TestDisk



On Wed, Oct 5, 2011 at 2:08 PM, Matt Graham <danceswithcrows at usa.net> wrote:
> From: Eric Shubert <ejs at shubes.net>
>> On 10/05/2011 12:17 PM, AZ Pete wrote:
>>> Does anyone have recommendations for a data recovery business,
>>> preferably here in the valley. My external drive isn't working.
>>> Seagate wants $600 for data recovery
>> Have Jim email me. I might be able to help him out, for a reasonable
>> fee.
>
> I've also done stuff like this a couple of times.  Results obtainable with
> *just* dd_rescue and fsck vary widely depending on how many bad sectors are on
> the disk.  The more actual bad sectors, the more likely you won't recover
> much.  The last disk I tried to recover, roughly 25% bad sectors meant a
> filesystem that was basically beyond fsck's capability to fix.
>
> Also, if the disk is marginal, trying to read from it may increase the number
> of bad sectors if/when you decide to try doing more expensive hardware-based
> recovery.  The first thing I'd try is to plug the disk in to a Linux box
> without any sort of automount utility running and try to read the first few
> sectors with dd.  Bad sectors there = bad prognosis.  No errors = try mounting
> the first partition, go from there.  Errors = try dd_rescueing the partition
> to a known good disk so you have a copy, then run fsck or other tools on a
> copy of the copy.  Simple to think about.  More difficult to *DO* and get
> useful junk back....
>
> --
> Matt G / Dances With Crows
> The Crow202 Blog:  http://crow202.org/wordpress/
> There is no Darkness in Eternity/But only Light too dim for us to see
>
>
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-- 
A mouse trap, placed on top of your alarm clock, will prevent you from
rolling over and going back to sleep after you hit the snooze button.

Stephen