[Nottingham] Best way to do a HDD surface scan?

[Martin]

Folks,

What's currently the best way to do a non-destructive surface scan of a 
USB HDD from a Linux system?

(And no, I don't want to reboot into some manufacturer's custom CD. I've 
run out of spare machines!)


Anything better than (destructively) formatting VFAT and checking that? 
Or dd and checksum?

Cheers,
Martin

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Martin Lomas
martin at ml1.co.uk
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