13 Dec
2000
13 Dec
'00
9:19 a.m.
What? Is the same message showing up more than once?
Must be some sort of brain fart! I may learn to drive this thing some day
...
Dick
----- Original Message -----
From: "Don Maslin" <donm(a)cts.com>
To: <classiccmp(a)classiccmp.org>
Sent: Tuesday, December 12, 2000 10:39 PM
Subject: Re: need a HDD
Jeez! Four times!!!
- don
On Tue, 12 Dec 2000, Richard Erlacher wrote:
> <stroking beard and clearing throat>
>
> It seems as though, whenever there's a substantial discussion about
rotating
<snip>
> board next to one of the IC's and it will get
lost.
>
> Thanks,
>
> Dick
> ----- Original Message -----
> From: <jpero(a)sympatico.ca>
> To: <classiccmp(a)classiccmp.org>
> Sent: Tuesday, December 12, 2000 1:13 PM
> Subject: Re: need a HDD
>
>
> > > Date: Tue, 12 Dec 2000 16:33:06 -0800
> > > From: Marvin <marvin(a)rain.org>
> > > To: classiccmp(a)classiccmp.org
> > > Subject: Re: need a HDD
> > > Reply-to: classiccmp(a)classiccmp.org
> >
> > >
> > >
> > > Richard Erlacher wrote:
> > > >
> > > > Just in case someone's got one, I'm looking for a hard disk
with
640
> > > > cylinders x 8 heads to replace a
Rodime 204E. If anyone has
somthing
> that
> > > > will fit this geometry, and it's available, I'd like to be
informed.
> > >
> > > My memory (and docs) are not so good right now, but isn't that
basically
> the
> > > same configuration as the Seagate 251? If so, I probably have
several of
> > > them just sitting around *waiting* for
an application to pop up :).
Let
me
know if
you need one.
Mavin,
In MFM world, most commonest n of heads and cylinders is usually 6xx
and 8xx and 4 to 6 heads. Beyond that, that not very common.
ST251 is 820 (check) x 6 heads (not met) needs 8.
On this topic,
Even I was latecomer to MFM I deal with MFM/RLL, exrotic ESDI in
early '90's.
While I was thinking, why not have someone design and program a
adapter to take MFM/RLL as well as ESDI and translate it to SCSI or
IDE and wrap it up in DSP and all in one microcontroller, interface
chipset and some ram, rom? This way, helps people to upkeep their
oddball machine that insists on odd drives. To set up that adapter
board to report specific cylinders range and heads, N of sectors that
reports back to that host machine and just "LL format" the scsi or
IDE hd if needed then HLF it in normal manner as you would do with
any MFM/RLL, ESDI drives.
Cheers,
Wizard