M8207 anyone?

From: Jerome Fine <jhfine_at_idirect.com>
Date: Thu Aug 10 09:39:57 2000

>ajp166 wrote:

> Envision this (all dual width cards):
>
> 11/23 m8186 KDF-11A (11/23 Q22, I have one overclocked).
> boot M8021 MRV11 (Eprom card with boot)
> ram M8059(x4) MSV11LK (4x =1mb)
> serial M8043 DLV11j 4port serial
>
> One possible Disk system, all DEC
> disk M7555 RQDX3
> M9058 disk distribution
> flop TEACFD55GFV RX33
> HD RD52 RD52
>
> OR hybrid DEC:
> CMD200, RZ23, Cdrom

Jerome Fine replies:

I have attempted on a number of occasions - all without success - to
get a CD on a CMD220/TM host adapter on a PDP-11 system
under RT-11. I suspect that I am using the wrong CD drive. Does
anyone have any suggestions as to model number that would work?
I have asked around and there does not seem to be any DEC CD
drives available like the RRD42.

By the way, when I put a CD (RT-11 Freeware CD) into my CD
IDE drive on the PC and MOUNT the CD under E11, I am unable
to read the first 64 blocks. I understand this is a function of W95.
If I am able to produce a CD of my own from an old ST11200N
drive that I have, will that same limitation apply on a real PDP-11
in that I will not be able to read the first 64 blocks of partition zero
on the CD media?

In addition, if possible, I would prefer to use a more current model
than the RRD42 from DEC which requires the caddy for the CD.
Since I am able to use E11 on a PC to read a CD these days,
there is also a bit of an emphasis on cost. At this point, I have
found that it is just as simple to transfer the files to a magneto
optical cartridge and use a Sony S501 on the real PDP-11
and the PC as an interchange media. I would like to acquire
some additional magneto optical cartridges as well. Does anyone
know where I might be able to find some inexpensive magneto
optical cartridges for the S501 drives? These must be the media
that are 512 bytes per sector.

Sincerely yours,

Jerome Fine
Received on Thu Aug 10 2000 - 09:39:57 BST