9 Nov
2007
9 Nov
'07
2:07 a.m.
jpero at sympatico.ca wrote:
Interesting... it's not something I've ever seen happen before - logic faults,
head crashes, spindle motor failures etc, yes, but it's the first time I've
seen this particular failure. I didn't even realise until I saw this drive
that drive magnets are coated in anything at all.
My archive attempt got 58MB into the 80MB drive (with about 2MB of broken
sectors) then the drive suddenly span down - I wonder if it maintains its own
error count on board and just declared itself broken. I'm just trying another
attempt now and if it's worth doing I'll merge the resulting two files and see
if I can get any meaningful data out of them.
The disk was from Torch's offices, and does seem to have an install of their
flavour of UNIX on (I'd wondered if it'd been wiped) - there's a chance
it's
got something interesting on it. I've managed to mount Torch partitions before
under Linux (using one of the UFS variants I think) so I'll give that a try -
it's just a question of whether the image is way too full of holes for the
filesystem driver to make any sense of it...
cheers
Jules
I've got a
Magnetic Peripherals 94211-91 SCSI drive here where the magnets for
the head stack seem to have been coated - at least around the edges - with
some form of paint. The paint's now begun to flake off, jamming up the head
Snip:
Anyone seen this particular mode of failure
before? It's a new one on me...
Jules
This is unfortune fact of life with many rare-earth magnets, they
were sintered material and corrodes badly unless coated or plated
(chromed or nickel plated), some had poorer coating/plating and
begin to corrode and swells eventually burst maget's seams open and
get crap all over inside the hard drive.