3 Feb
2023
3 Feb
'23
6:26 p.m.
Chris, what kind of magnet did you use?
If it was an electromagnet I could imagine that you caused physical damage
by something heating up sufficiently. If it was a permanent magnet then it
might indeed be servo data which has been erased. Either way I expect you
need a very strong magnetic field to erase a hard drive from the outside.
Tom
On Sat, 4 Feb 2023, 12:40 am Chris Zach via cctalk, <cctalk(a)classiccmp.org>
wrote:
Question: I just used a strong magnet to wipe an old
Maxtor MFM drive
(magnet on outside of case). Now the drive will not even seek properly
on start up, just endlessly moves the heads..
Is the drive now toast? Do MFM drives have embedded servo information on
the platter formatted by the factory?
CZ