Re: NetBSD-friendly HDD recovery?

2020-11-25 Thread Brett Lymn
On Tue, Nov 24, 2020 at 08:21:53AM +0100, Thomas Mueller wrote:
> 
> Are you thinking of something that acts like dd on the whole disk but using 
> special data-recovery methods?
> 

Yes.

> That would require a medium having equal or greater data capacity.
> 

Well, yes it would though compressing the image can help a bit.

> Taking the electronics board off a working drive to transfer to a dead drive 
> carries the risk of messing up and losing both drives.  I don't think I'd be 
> daring enough. 
> 

It does work, I have done it in the past...

> The hard-drive manufacturer would surely advise against taking off the 
> electronics board and would point out that it would void the warranty.
> 

Of course they would but some of us are actually engineers by training
and hacking hardware is our trade.  It is not something I would
recommend to the casual bystander but if you have the skills it can get
you over the line - the internals of a hard disk are pretty simple and
robust, most failures are the electronics that make it go.

-- 
Brett Lymn
--
Sent from my NetBSD device.

"We are were wolves",
"You mean werewolves?",
"No we were wolves, now we are something else entirely",
"Oh"


Re: NetBSD-friendly HDD recovery?

2020-11-23 Thread Thomas Mueller
> On Mon, Nov 23, 2020 at 11:54:41AM -0600, David Young wrote:
 
> > I want to avoid paying a steep price to a service that scans the
> > medium and, finding no FAT/NTFS/HFS+/APFS volume on it, declares it
> > unrecoverable when, in actual fact, every bit is intact.  Is there a
> > service that I can trust my NetBSD disk to that has a reasonable fee
> > structure?
X-CMAE-Envelope: 
MS4wfNaO/uhadDlolDP43vqPZS/MYlw7VaTrUleXS7OiANt3YYiieh8/FZJXbGwxyd+n8voRQEWGLzKvFBCyTVIkqusZYoy+6LA8irMCZjAVzYseGJMzlzYV
 jUvdy7tEbEqXDZij12mRpFmRfo7yhyl4FWf0BdAyFE/ngp+0XLtxdKQu

> Perhaps you can find one that will provide a binary blob of this disk 
> contents so
> you can loop mount the file and recover stuff.  As for cost I think the 
> attitude of
> the data recovery places is that they have you by the short and curlies so 
> they can
> charge what they like, I know that recovery can be complex and challenging 
> but the
> pricing does seem excessive.

> If you have the same model drive you could take the electronics board off a 
> working
> drive and put it on the dead one - I have done that in the past to good 
> effect.

> Brett Lymn

Are you thinking of something that acts like dd on the whole disk but using 
special data-recovery methods?

That would require a medium having equal or greater data capacity.

Taking the electronics board off a working drive to transfer to a dead drive 
carries the risk of messing up and losing both drives.  I don't think I'd be 
daring enough. 

The hard-drive manufacturer would surely advise against taking off the 
electronics board and would point out that it would void the warranty.

Tom




Re: NetBSD-friendly HDD recovery?

2020-11-23 Thread Ted Spradley
On Mon, 23 Nov 2020 11:54:41 -0600
David Young  wrote:

> I have some old Seagate-brand spinning rust with a NetBSD system on
> it.  The disk does not spin up, but I am pretty sure that the content is
> intact, and I would like to have it for a reasonable price.  Is there a
> service that's known to be NetBSD friendly?

ACE Data Recovery
https://www.datarecovery.net/

I had a FreeBSD ZFS filesystem that I thoroughly screwed up due to my own 
negligence. They wanted $1800 to recover it. They had to put another head and 
actuator in it to get anything at all. They were able to recover a lot of old 
stuff that I had old backups for, but couldn't recover the stuff from the last 
year when I had no backup. After a few months of trying they gave up and gave 
us the disk drive *and money* back.

I Highly recommend them.

-- 
Ted Spradley 


Re: NetBSD-friendly HDD recovery?

2020-11-23 Thread Brett Lymn
On Mon, Nov 23, 2020 at 11:54:41AM -0600, David Young wrote:
> 
> I want to avoid paying a steep price to a service that scans the
> medium and, finding no FAT/NTFS/HFS+/APFS volume on it, declares it
> unrecoverable when, in actual fact, every bit is intact.  Is there a
> service that I can trust my NetBSD disk to that has a reasonable fee
> structure?
> 

Perhaps you can find one that will provide a binary blob of this disk contents 
so
you can loop mount the file and recover stuff.  As for cost I think the 
attitude of
the data recovery places is that they have you by the short and curlies so they 
can
charge what they like, I know that recovery can be complex and challenging but 
the
pricing does seem excessive.

If you have the same model drive you could take the electronics board off a 
working
drive and put it on the dead one - I have done that in the past to good effect.

-- 
Brett Lymn
--
Sent from my NetBSD device.

"We are were wolves",
"You mean werewolves?",
"No we were wolves, now we are something else entirely",
"Oh"