Curious, does vendors like HP & Sun have the means to distinguished
if faulty hard disk drives returned to them have been degaussed ?
A degaussed hard disk can't be used anymore while a disk drive that's
crashed (ie it's platter surface damaged?) are both physically damaged,
so in both cases, the hard disks can't be reformatted & reused anymore.
How then would the vendors be able to tell if the disks returned to them
have been degaussed & not of other physical damage?
Also, I've seen colleagues placing a hard disk into a degausser machine.
If we place a piece of tape into the degausser, would it also degauss
the tape securely such that it's data is beyond retrieval anymore?
Or we need different degaussers for disks & tapes ?