On Monday 15 November 2010 18:07:27 Alan McKinnon wrote:
> Apparently, though unproven, at 17:10 on Monday 15 November 2010, J.
> Roeleveld
> 
> did opine thusly:

<snipped>

> > 
> > How is this different from:
> > 1) take a backup
> > 2) check for bad sectors (badblocks)
> > 3) restore backup
> > 
> > This is also less risky as the data is backed up somewhere safe
> 
> spinrite claims to make the head do other things than what the drive
> firmware makes it do. Meaning that spinrite can extract data that the
> drive itself in normal conditions cannot. This reasoning is sound.

True, provided it actually knows HOW to override the firmware on all drives 
currently in use...

> Remember that a drive is an analogue device, not a digital one (only the
> *output data* is digital).

Ofcourse, but is the head actually sensitive enough to be able to cooperate 
with this? Professional data recovery companies actually take out the platters 
and use their own drive-heads to get the data out.

> There is some doubt as to whether spinrite can even function in this wise
> with modern drives though.

Yes, and that's exactly my point. Something that overrides the drives firmware 
can, in my view, easily brick the drive.

--
Joost

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