Can't get Segate ST-4096 to work in UNIXPC (works fine in 6
Thad P Floryan
thad at cup.portal.com
Sun Jul 2 10:09:25 AEST 1989
Since the question has come up again from Larry Thurman, when I posted my
original answer yesterday I was at my office and didn't have this info
available. I'm at my lab and now I do, so here it is.
This collection of postings from earlier this year contains Q&A about some
of the UNIXPC upgrades, where to order some of the upgrade kits, and a listing
of some HDs known to function with the UNIXPC. All of these are unedited
copies of the original postings by the original posters.
Hope this helps!
Thad Floryan [ thad at cup.portal.com (OR) ..!sun!portal!cup.portal.com!thad ]
==================== begin of reposted articles ====================
From: gil at limbic.UUCP (Gil Kloepfer Jr.)
Newsgroups: unix-pc.general,comp.sys.att
Subject: UNIX-pc Second Hard Drive - Information (lengthy)
Date: 16 Feb 89 04:22:32 GMT
My apologies to those who have seen this before, or who may be otherwise
"offended" by the repost of this article -- I have been swamped with
questions about the second hard disk upgrade, and I see no need to send
out individual mail to each person. Here's the poop:
Question: What's the difference between the P5.1 upgrade and the second
hard disk expansion upgrade?
Answer:
P5.1 is a REVISION DESIGNATION of the motherboard. The original P5.1 field
upgrade was an unreleased AT&T field upgrade which added a PAL and a bunch
of jumpers on the motherboard and "turned-on" some OS features, and decoded
a 4th head select line from an internal port called MCR2.
The second hard disk expansion is a SUPERSET of the P5.1 expansion. The
second hard disk upgrade upgrades a motherboard to P5.1 (has to, P5.1 is
just a motherboard which has MCR2), decodes the 4th head select from MCR2,
and decodes another bit on MCR2 which allows a second disk drive select.
Question: Do I need to install the second disk upgrade in order to have
the P5.1 upgrade?
Answer:
No, but it is kind of silly to do P5.1 without doing the 2nd disk upgrade
unless you only plan to install a bigger drive in your 3B1. There is
somewhat more wiring involved in the construction of the 2nd disk upgrade,
but it shouldn't be scary if you feel comfortable running jumpers all around
on your motherboard.
P5.1 alone doesn't really add any new functionality to a 3B1 with a stock
40 or 67 meg hard disk drive. Neither does the second hard disk expansion
unless you add the second hard disk.
Question: I already did the original PAL-based P5.1 motherboard upgrade.
Does the second hard disk expansion mean undoing all my work?
Answer:
No. If you socketed the PAL in the P5.1 upgrade, you need only add 7 more
motherboard jumpers, one modification to the motherboard, and construct
the expansion board. The socket on the motherboard where you had the PAL
will be used to connect the expansion board to the motherboard via a
ribbon cable (there will be a 20 pin DIP header on the motherboard side
of the ribbon cable which now plugs into the motherboard).
One other note is that the ICUS second disk expansion requires no PAL
programming to be performed. The only chips used are standard LS TTL
chips and two hard disk buffer ICs (available at outfits like Jameco
Electronics in California and some local electronics supply houses).
Question: What's the difference between the ICUS second hard disk upgrade
and the one that John Milton is working on?
Answer:
John is planning on eliminating one phase of construction of the second
disk upgrade by distributing a completed PC board with his upgrade
instructions. The PC board will eliminate the need to wire a small 5-chip
circuit on a perfboard (the perfboard-wired circuit is fairly simple and
straightforward, but might look scary to some folks). John's upgrade
will also provide the capability for 4 hard disks *when the software to
use them comes available*. Currently, the OS software only allows 2
hard disks to be connected, and 4 partitions to be simultaneously mounted.
Both the ICUS upgrade and John's upgrade will require the motherboard to
be modified and jumpers installed. This requires a significant amount
of patience and care to be performed correctly.
Question: Is any additional software required for the use of two
disk drives?
Answer:
No, this is built-into the operating system. The devices for the second
hard disk are /dev/rfp010 - /dev/rfp01f and /dev/fp010 - /dev/fp01f .
Question: I am interested in getting the ICUS upgrade? How do I do so?
Answer:
The ICUS upgrade is a manual, not a kit. It provides the items outlined
below:
1. Schematic diagram of the upgrade (extension) board
2. Full instructions regarding the motherboard
modifications and assembly of the extension board
3. Theory of operation of the modification
4. Photographs (aproximately 10) showing the more
difficult portions of the upgrade (sections of the
motherboard where wires were routed, socket installed,
a section where wires are soldered to pads instead of
chips, construction of the extension board)
5. Diagrams (where the photos fall short) and construction
hints
For an additional fee of $5, we will also send a disk with the extended
diagnostic on it (this contains commands which allow larger disks to
be formatted [ie. disks with more than 1024 cylinders] and tested, and
it also allows you to partition your disk into multiple smaller partitions).
To order the upgrade plans, send a check (or money order) for the correct
amount:
$30 - Hard disk upgrade plans
$35 - Hard disk upgrade plans with diagnostic disk
...and NET ADDRESS to:
ICUS Software Systems
Hard disk expansion plans
c/o Lenny Tropiano
P. O. Box 1
Islip Terrace, NY 11752
Make checks payable to Lenny Tropiano or Gil Kloepfer.
We are requesting that you send us your net address so that we can send
you e-mail when we send out your plans, and so that if any problems are
discovered after we mail your plans, that we can contact you in the
future.
If you are not confortable following a schematic diagram and constructing
a small circuit on perfboard, we recommend that you wait for John Milton's
upgrade since the assembled PC board will eliminate this step. I don't
know when John's upgrade will be available. Remember that for both upgrades
the motherboard modifications will still be required.
I hope this answers some of the questions I have been receiving.
-------
Gil Kloepfer, Jr. U-Net: {decuac,boulder,talcott,sbcs}!icus!limbic!gil
ICUS Software Systems Voice: (516) 968-6860 [H] (516) 746-2350 x219 [W]
P.O. Box 1 Internet: gil at icus.islp.ny.us
Islip Terrace, NY 11752 "Life's a ... well, you know..."
======================================================================
From: jbm at uncle.UUCP (John B. Milton)
Newsgroups: comp.sys.att,unix-pc.general
Subject: Re: UNIX-pc Second Hard Drive - Information (lengthy)
Date: 19 Feb 89 06:18:44 GMT
In article <466 at limbic.UUCP> gil at limbic.UUCP (Gil Kloepfer Jr.) writes:
...
> John's upgrade
>will also provide the capability for 4 hard disks *when the software to
>use them comes available*. Currently, the OS software only allows 2
>hard disks to be connected, and 4 partitions to be simultaneously mounted.
It will also provided feed through connectors for the floppy drive, and
provide the hardware for a second floppy drive, once again, when the software
becomes available.
Everyone who wants to be notfied by e-mail directly when I get it done should
e-mail me. This will also affect my thoughts on pricing and how fast I should
gear up production. I you are one of a group of users, just send me one mail
message with the number of machines.
Once again, for those of you who don't know: I will be providing assembled and
tested boards ONLY. I have not settled on a price, and I don't want to turn
you off or get your hopes up by posting a price I may change later...
John
--
John Bly Milton IV, jbm at uncle.UUCP, n8emr!uncle!jbm at osu-cis.cis.ohio-state.edu
(614) h:294-4823, w:764-2933; Got any good 74LS503 circuits?
======================================================================
From: cmv at ttrde.UUCP (C M Votava)
Newsgroups: unix-pc.general
Subject: Hard Disks for the unixpc
Date: 25 Feb 89 22:32:48 GMT
About a year ago, I posted this list to the net. I've received a lot
of mail asking me to post it again, so here it is.
This is a list of ST506/412 hard disk drives that *should* work in the
unixpc. All drives are 5.25" unless otherwize specified. The drives that
I have "VERIFIED" next to are drives that I *KNOW* by
first had experience, or reliable second hand experience, work fine. The
others should work, but I've not heard any confirmations on. I'm sure there
are more out there that can be verified, or that are missing from this list.
Please drop me mail if you can help me update this list any.
Once again, here it is...
5/25/88
Model Height Size Ave Sk Heads: Record
unformatted time Cyls Method Comments
=============================================================================
----------------------------CONTROL DATA-------------------------------------
FWCDC48 Full 48.20MBytes 28msec 5:925 MFM
94205-51 Half 51.__MBytes 28msec 5:989 MFM VERIFIED (quiet!)
FWCDC85 Full 85.30MBytes 28msec 8:1024 MFM
94155-86 Full 86.__MBytes 28msec 9:925 MFM VERIFIED
94355-55 Half 55.__MBytes 16msec 5:1072 MFM 3.5" FAST!!!
94355-100 Half 100._MBytes 16msec 9:1072 MFM 3.5" FAST!!! VERIFIED
94335-55 Half 55.__MBytes 25msec 5:1072 MFM 3.5"
94335-100 Half 100._MBytes 25msec 9:1072 MFM 3.5"
-------------------------DIGITAL EQUIPMENT CORP------------------------------
RD32 Half 51.__MBytes 48msec ? ?
RD52 Full 33.__MBytes 38msec 8:512 MFM (Quantum)
RD53 Full 85.__MBytes 38msec 8:1024 MFM (Micropolis1335)
RD54 Full 191._MBytes 38msec ? ? (Maxtor2190??)
-------------------------------FUJITSU---------------------------------------
2243AS2 Full 86.__MBytes 30msec 11:754 MFM VERIFIED
2443T Half 86.__MBytes 25msec 7:1185 MFM
-------------------------------HITACHI---------------------------------------
DK521 Half 51.40MBytes 25msec ? ?
-------------------------------MAXTOR----------------------------------------
XT1085 Full 85.30MBytes 28msec 8:1024 MFM
XT1140 Full 143.5MBytes 27msec 15:918 MFM
XT2190 Full 191.2MBytes 30msec 15:1224 MFM
-----------------------------MICROPOLIS--------------------------------------
1325 Full 80.??MBytes ??msec 8:1024 MFM VERIFIED gizzmo!mark
1333A Full 53.30MBytes 30msec 5:1024 MFM
1335 Full 85.30MBytes 30msec 8:1024 MFM
----------------------------MICROSCIENCE-------------------------------------
HH-1050 Half 53.35MBytes 28msec ? MFM
HH-4050 Full 53.35MBytes 18msec ? ?
-----------------------------MINISCRIBE--------------------------------------
**formatted**
*****size***
3053 Half 44.00MBytes 29msec 5:1024 MFM VERIFIED
3212+ Half 12.75MBytes 53msec 2:615 MFM
3425+ Half 21.40MBytes 53msec 4:615 MFM
3650 Half 42.25MBytes 61msec 6:809 MFM VERIFIED
6032 Full 26.70MBytes 28msec 3:1024 MFM
6053 Full 44.60MBytes 28msec 5:1024 MFM
6085 Full 71.30MBytes 28msec 8:1024 MFM VERIFIED
---------------------------NEWBURY DATA INC----------------------------------
NDR1000 Full 65.__MBytes 25msec ? ?
NDR2000 Full 190._MBytes 28msec ? ?
--------------------------------PRIAM----------------------------------------
ID40 Full 51.10MBytes 28msec 5:981 MFM
ID45H Half 53.20MBytes 28msec 5:1024 MFM
ID60 Full 71.50MBytes 28msec 7:981 MFM
ID130 Full 159.9MBytes 28msec 15:1024 MFM
519 Full 191.2MBytes 22msec ? ?
-----------------------------RODIME INC--------------------------------------
RO5090 Full 89.__MBytes 28msec ? ?
-------------------------------SEAGATE---------------------------------------
ST225 Half 25.60MBytes 20msec 4:615 MFM
ST251 Half 51.20MBytes 40msec 6:820 MFM VERIFIED
ST251-1 Half 51.20MBytes 28msec 6:820 MFM VERIFIED
ST4038 Full 38.20MBytes 40msec 5:733 MFM
ST4053 Full 50.90MBytes 40msec 5:1024 MFM
ST4096 Full 96.00MBytes 28msec 9:1024 MFM
=============================================================================
Please send comments, questions, and updates to
Craig Votava
[att!]ihlpm!cmv
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