21 Sep
2009
21 Sep
'09
7:38 p.m.
Hi, All,
I have some 2.5" SCSI drives from Thinkpads - Toshiba MK2428FB, IBM
DVAS-2810, and an IBM DPRS-21215. I don't think they have the same
pin arrangement as older 68K-era Mac laptops that take SCSI drives
(though I could be mistaken on that). Was there more than one
standard pinout in the sub-1GB 2.5" SCSI drive world?
Thanks for any comments, observations, and pointers.
-ethan
21 Sep
21 Sep
7:42 p.m.
----- Original Message -----
From: "Ethan Dicks" <ethan.dicks at gmail.com>
To: "classiccmp" <classiccmp at classiccmp.org>
Sent: Monday, September 21, 2009 10:38 PM
Subject: 2.5" laptop SCSI drive standards?
Hi, All,
I have some 2.5" SCSI drives from Thinkpads - Toshiba MK2428FB, IBM
DVAS-2810, and an IBM DPRS-21215. I don't think they have the same
pin arrangement as older 68K-era Mac laptops that take SCSI drives
(though I could be mistaken on that). Was there more than one
standard pinout in the sub-1GB 2.5" SCSI drive world?
Thanks for any comments, observations, and pointers.
-ethan
Which thinkpads had scsi?
7:51 p.m.
Teo Zenios wrote:
----- Original Message ----- From: "Ethan Dicks" <ethan.dicks at
gmail.com>
To: "classiccmp" <classiccmp at classiccmp.org>
Sent: Monday, September 21, 2009 10:38 PM
Subject: 2.5" laptop SCSI drive standards?
800, 820, 850, 860? Probably some of the 7-series too.
Peace... Sridhar
Hi, All,
I have some 2.5" SCSI drives from Thinkpads - Toshiba MK2428FB, IBM
DVAS-2810, and an IBM DPRS-21215. I don't think they have the same
pin arrangement as older 68K-era Mac laptops that take SCSI drives
(though I could be mistaken on that). Was there more than one
standard pinout in the sub-1GB 2.5" SCSI drive world?
Thanks for any comments, observations, and pointers.
-ethan
Which thinkpads had scsi?
8:27 p.m.
----- Original Message -----
From: "Sridhar Ayengar" <ploopster at gmail.com>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
Sent: Monday, September 21, 2009 10:51 PM
Subject: Re: 2.5" laptop SCSI drive standards?
800, 820, 850, 860? Probably some of the 7-series too.
Peace... Sridhar
Don't think any of the 7xx series had SCSI, never owned a unix 8xx series to
know what was in them.
8:35 p.m.
Teo Zenios wrote:
----- Original Message ----- From: "Sridhar Ayengar" <ploopster at
gmail.com>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
Sent: Monday, September 21, 2009 10:51 PM
Subject: Re: 2.5" laptop SCSI drive standards?
I know some of the really early 7-series machines used ESDI. And I
don't remember what the CL57SX used.
Peace... Sridhar
800, 820, 850, 860? Probably some of the 7-series too.
Peace... Sridhar
Don't think any of the 7xx series had SCSI, never owned a unix 8xx
series to know what was in them.
8:48 p.m.
----- Original Message -----
From: "Sridhar Ayengar" <ploopster at gmail.com>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
Sent: Monday, September 21, 2009 11:35 PM
Subject: Re: 2.5" laptop SCSI drive standards?
Teo Zenios wrote:
Are we still talking laptops here?
----- Original Message ----- From: "Sridhar Ayengar"
<ploopster at gmail.com>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
Sent: Monday, September 21, 2009 10:51 PM
Subject: Re: 2.5" laptop SCSI drive standards?
I know some of the really early 7-series machines used ESDI. And I don't
remember what the CL57SX used.
Peace... Sridhar
800, 820, 850, 860? Probably some of the 7-series too.
Peace... Sridhar
Don't think any of the 7xx series had SCSI, never owned a unix 8xx series
to know what was in them.
9:16 p.m.
Teo Zenios wrote:
I know some of the really early 7-series machines used ESDI. And I
don't remember what the CL57SX used.
Peace... Sridhar
Are we still talking laptops here?
Yes.
Peace... Sridhar
800, 820, 850,
860? Probably some of the 7-series too.
Peace... Sridhar
Don't think any of the 7xx series had SCSI, never owned a unix 8xx
series to know what was in them. 
9:55 p.m.
At 12:16 AM -0400 9/22/09, Sridhar Ayengar wrote:
Teo Zenios wrote:
Are we still talking laptops here?
Yes.
Peace... Sridhar
Wow, there is something I never knew. There were 2.5" ESDI HD's?!?!
I didn't even know there were any smaller than 5.25".
Zane
--
| Zane H. Healy | UNIX Systems Administrator |
| healyzh at aracnet.com (primary) | OpenVMS Enthusiast |
| MONK::HEALYZH (DECnet) | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| PDP-10 Emulation and Zane's Computer Museum. |
| http://www.aracnet.com/~healyzh/ |
>800, 820, 850, 860? Probably some of the 7-series
too.
>
>Peace... Sridhar
>
Don't think any of the 7xx series had SCSI, never owned a unix
8xx series to know what was in them.
I know some of the really early 7-series machines used ESDI. And
I don't remember what the CL57SX used.
Peace... Sridhar
10:29 p.m.
Zane H. Healy wrote:
Yes.
Wow, there is something I never knew. There were 2.5" ESDI HD's?!?! I
didn't even know there were any smaller than 5.25".
I just looked it up. The PS/2 N51SX and CL57SX used 2.5" ESDI drives,
and the PS/2 L40SX used IDE (<504MB).
Peace... Sridhar
I know some of
the really early 7-series machines used ESDI. And I
don't remember what the CL57SX used.
Are we still talking laptops here? 
10:38 p.m.
> Wow, there is something I never knew. There were
2.5" ESDI HD's?!?! I
> didn't even know there were any smaller than 5.25".
I have a 3.5" ESDI hard drive in one machine. I don't remember for sure,
but I think that it's size is 100M? 120M? 200M? It's on a WD1007?
controller. If it matters, I know which table that machine is on.
10:43 p.m.
Fred Cisin wrote:
The one I seem to remember from the PS/2 70 is 120MB.
Peace... Sridhar
> Wow, there
is something I never knew. There were 2.5" ESDI HD's?!?! I
> didn't even know there were any smaller than 5.25".
I have a 3.5" ESDI hard drive in one machine. I don't remember for sure,
but I think that it's size is 100M? 120M? 200M? It's on a WD1007?
controller. If it matters, I know which table that machine is on. 
11:04 p.m.
On 22/09/2009 06:38, Fred Cisin wrote:
I have a NEC D3661, which is a 118MB full-height 3.5" ESDI drive.
--
Pete Peter Turnbull
Network Manager
University of York
> Wow, there
is something I never knew. There were 2.5" ESDI HD's?!?! I
> didn't even know there were any smaller than 5.25".
I have a 3.5" ESDI hard drive in one machine. I don't remember for sure,
but I think that it's size is 100M? 120M? 200M? It's on a WD1007?
controller. If it matters, I know which table that machine is on.
22 Sep
22 Sep
1:21 p.m.
On Tue, 22 Sep 2009, Pete Turnbull wrote:
I have a NEC D3661, which is a 118MB full-height
3.5" ESDI drive.
Mine is also an NEC, so that is likely the same one.
But, when 3.5" drives first came out, they were called "half-height"
(relative to 5.25" drives, and because [with brackets] they fit a
computer's 5.25" "half-height" drive bays)
Is there a need for one, or should I let it rot in peace?
--
Grumpy Ol' Fred cisin at xenosoft.com
10:49 p.m.
On 9/22/09, Sridhar Ayengar <ploopster at gmail.com> wrote:
Zane H. Healy wrote:
That sounds familiar. The PS/2 Model 30 (not 286) came with a 3.5"
ESDI drive - with a full-width edge connector. When the disk on the
one at work got too crowded, I replaced it with a 50 MB ST412 ("MFM")
disk and ISA controller, ignoring the motherboard disk controller. I
remember the size because it was too large for a single partition
under DOS 3.x, so we had a new "D:" drive that caused some confusion
for some of the users (they had only experienced machines with 30MB
and smaller drives up to that point.)
-ethan
Wow, there is something I never knew. There were
2.5" ESDI HD's?!?! I
didn't even know there were any smaller than 5.25".
Come to think of it, didn't the PS/2 Model 70 have a 3.5" ESDI?
10:54 p.m.
Ethan Dicks wrote:
On 9/22/09, Sridhar Ayengar <ploopster at
gmail.com> wrote:
The full width edge connector drive was the one on the Mod 70, wasn't
it? I thought the Mod 30-8086 came with only two floppy drives? Wasn't
the Mod 30 hard drive option a 3rd party jobbie?
Peace... Sridhar
Zane H. Healy wrote:
That sounds familiar. The PS/2 Model 30 (not 286) came with a 3.5"
ESDI drive - with a full-width edge connector. When the disk on the
one at work got too crowded, I replaced it with a 50 MB ST412 ("MFM")
disk and ISA controller, ignoring the motherboard disk controller. I
remember the size because it was too large for a single partition
under DOS 3.x, so we had a new "D:" drive that caused some confusion
for some of the users (they had only experienced machines with 30MB
and smaller drives up to that point.) Wow, there is something I never knew. There were
2.5" ESDI HD's?!?! I
didn't even know there were any smaller than 5.25".
Come to think of it,
didn't the PS/2 Model 70 have a 3.5" ESDI? 
11:07 p.m.
On Tuesday 22 September 2009, Sridhar Ayengar wrote:
Zane H. Healy wrote:
I think that the model 70 has a bus-attached disk interface ("IDE" of
sorts, but not ATA). Basically the MCA bus run to the disk drive slots.
I've got a few of the "special" disks laying around, but I'm not sure if
any of them work anymore.
Pat
--
Purdue University Research Computing --- http://www.rcac.purdue.edu/
The Computer Refuge --- http://computer-refuge.org
Wow, there is something I never knew. There were
2.5" ESDI
HD's?!?! I didn't even know there were any smaller than 5.25".
Come to think of it, didn't the PS/2 Model 70 have a 3.5" ESDI? 
8:20 p.m.
-------------- Original message from Ethan Dicks <ethan.dicks at gmail.com>:
--------------
Hi, All,
I have some 2.5" SCSI drives from Thinkpads - Toshiba MK2428FB, IBM
DVAS-2810, and an IBM DPRS-21215. I don't think they have the same
pin arrangement as older 68K-era Mac laptops that take SCSI drives
(though I could be mistaken on that). Was there more than one
standard pinout in the sub-1GB 2.5" SCSI drive world?
Thanks for any comments, observations, and pointers.
-ethan
Where are the ThinkPads, I know of only the Power PC
models that had SCSI. (8xx models) Getting very rare
these days. I'm always looking for these.
- Jerry
22 Sep
22 Sep
8:03 a.m.
----- Original Message -----
From: "Ethan Dicks" <ethan.dicks at gmail.com>
To: "classiccmp" <classiccmp at classiccmp.org>
Sent: Monday, September 21, 2009 8:38 PM
Subject: 2.5" laptop SCSI drive standards?
I have some 2.5" SCSI drives from Thinkpads -
Toshiba MK2428FB, IBM
DVAS-2810, and an IBM DPRS-21215. I don't think they have the same
pin arrangement as older 68K-era Mac laptops that take SCSI drives
(though I could be mistaken on that). Was there more than one
standard pinout in the sub-1GB 2.5" SCSI drive world?
A total aside - don't waste these drives! They are the only drive that will
fit inside the case of the Sparc Voyagers.
Jim
8:54 a.m.
On 9/22/09, Jim MacKenzie <jim at photojim.ca> wrote:
I was wondering that, actually. It looks like I have two 17mm drives
and one 19mm drive. I found the drive and cable from the old 68K Mac
laptop - it looks like it's a 17mm IBM-made drive (80MB). I'm
thinking one of these drives is going to end up in the laptop. I'm
not sure there's clearance for the tall one, though. I remember that
being a problem in the old days - too many laptop drive heights
floating around.
Thanks for the Voyager tip.
-ethan
I have some
2.5" SCSI drives from Thinkpads - Toshiba MK2428FB, IBM
DVAS-2810, and an IBM DPRS-21215.
A total aside - don't waste these drives! They are the only drive that will
fit inside the case of the Sparc Voyagers.
5570
days inactive
5570
days old
19 comments
9 participants
participants (9)
-
cisin＠xenosoft.com -
ethan.dicks＠gmail.com -
g-wright＠att.net -
healyzh＠aracnet.com -
jim＠photojim.ca -
pat＠computer-refuge.org -
pete＠dunnington.plus.com -
ploopster＠gmail.com -
teoz＠neo.rr.com