Tom Ivar Helbekkmo
tih at hamartun.priv.no
Thu Apr 26 00:02:05 AEST 2018
Ron Natalie <ron at ronnatalie.com> writes:
> RK05’s were 4872 blocks. Don’t know why that number has stuck with
> me, too many invocations of mkfs I guess. Oddly, DEC software for
> some reason never used the last 72 blocks.
I guess that's because they implemented DEC Standard 144, known as
bad144 in BSD Unix. It's a system of remapping bad sectors to spares at
the end of the disk. I had fun implementing that for the wd (ST506)
disk driver in NetBSD, once upon a time...
Most people who graduate with CS degrees don't understand the significance
of Lisp. Lisp is the most important idea in computer science. --Alan Kay
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