HDTenEightyP/NetNews huggingface dataset:
From: vail@tegra.com (Johnathan Vail)
Newsgroups: comp.periphs.scsi
Subject: Re: Cheating of Low Level Format by AHA-1542B
Date: 11 Nov 92 16:30:49 GMT
Organization: Tegra-Varityper, Inc. Billerica, MA


In article <guest.1.721505160@ncucs> guest@ncucs writes:


      I have a Quantum LP105S connected to AHA-1542B.  When it comes with DOS
   v5.0. they live a happy life, but once I install a 386BSD unix system and
   now I will return to DOS, the disk still start the UNIX booting even I have
   using the BIOS offset 0x0006 initialize the HD(it told me that it's a LOW-
   LEVEL format!!!), fdisk and dos format.  That's to say the disklabel written
   by UNIX still attatch in the disk!  

      I am doubt why the controller can't make a REAL LOW-LEVEL format for the
   SCSI HD, Maybe any have the same problem and the ADAPTEC should provide a
   reasonable explaination and practice solution.  Or others have any tool can
   do it, please inform me, I will be appriciate of you.


With SCSI the controller does not do the format, it merely sends a
command to the drive to format itself.  Most drives wil reformat
themselves when you send this command.  For some reason the Quantum
drives don't normally do this.

With the LPS drive you need to set a bit in a vendor unique mode page.
Page 0x39 is "Quantum-Unique Drive-Control Parameters" and can be
written with this page data:

	/* header	*/	0,0,0,0,
	/* page data: 	*/	0x39, 6, 8, 0, 0, 0, 0, 0};


The '8' sets a bit called FDPE or FILL DATA PATTERN ENABLED.  It
allows the drive to use byte 2 of the FORMAT UNIT command to fill the
drive with.  Otherwise the drive apparently ignores this.  I suppose
it is a lot faster than actually doing what you told it to.


I don't know how you would do this on a PC.  Maybe SCSICNTL or
something.  Or write a program for ASPI.  It would be easier than with
386BSD since there is no way for an application to get at the SCSI
bus.


jv <- "been there, done that"

 _____
|     | Johnathan Vail     vail@tegra.com     (508) 663-7435
|Tegra| jv@n1dxg.ampr.org    N1DXG@448.625-(WorldNet)
 -----  MEMBER: League for Programming Freedom (league@prep.ai.mit.edu)
Xref: sparky comp.periphs.scsi:5352 comp.sys.amiga.hardware:19183
From: jesup@cbmvax.commodore.com (Randell Jesup)
Newsgroups: comp.periphs.scsi,comp.sys.amiga.hardware
Subject: Re: CBM 2090a controller and MD21/MC1588 problem
Keywords: scsi,2090a,md21,micropolis,mc1588,sun,shoebox,crash
Date: 8 Nov 92 23:46:09 GMT
Reply-To: jesup@cbmvax.commodore.com (Randell Jesup)
Organization: Commodore, West Chester, PA

davis@chem.canterbury.ac.nz writes:
>I've recently been playing around trying to get an old Sun shoebox (archive
>5945c tape and micropolis 1588 312Mb esdi drive on a mt02 and md21
>respectively) working with a CBM 2090a scsi controller. 
>
>The drive works to some extent (can read/write most of it), but any attemp
>to access data beyond the 250Mb mark results in _spectacular_ crashes. The

	The A2090a was designed when an 80MB drive was big (or maybe 40).
The driver has some known failures if you try to tell it a track is more
than ?63?127? sectors, or when it tries to read past some point around
300Meg (I don't know the exact point, it could be ~250Meg).

	No new driver is available, nor is a new driver likely (several
people have tried to rewrite it, all have failed so far - the hardware has
a few problems, and the old driver is pretty frightening...)  However, I've
heard rumors there's a PD/shareware/whatever SCSI-only driver for it available
in Europe (for those that don't know the 2090 is a ST506 & SCSI controller).

	One reason it's problematic to rewrite is that the board doesn't
hold off data coming into the FIFO if the FIFO gets full.  Since if the DMA
is going to "chip" ram (video/audio/blitter/etc ram), it can be held off a
long time in high-bandwidth display modes, the FIFO can fill and you get an
overrun, and have to retry the entire command.  Mixing it with ST506 IO
adds more fun.  Later Commodore SCSI controllers learnt from the 2090's
mistakes (though early A590's and a few A2091's still used the WD33c93 non-a)
...

-- 
To be or not to be = 0xff
-
Randell Jesup, Jack-of-quite-a-few-trades, Commodore Engineering.
{uunet|rutgers}!cbmvax!jesup, jesup@cbmvax.cbm.commodore.com  BIX: rjesup  
Disclaimer: Nothing I say is anything other than my personal opinion.
From: clemens@faui8a.informatik.uni-erlangen.de (Clemens Beckstein)
Newsgroups: comp.periphs.scsi
Subject: Re: IDE + SCSI w/o SCSI disk
Date: 5 Nov 92 09:21:36 GMT
Organization: Regionales Rechenzentrum Erlangen
NNTP-Posting-Host: faui8a.informatik.uni-erlangen.de

Jong Gyun Lim <lim@cs.columbia.edu> writes:


>My system has IDE controller with one IDE disk and 2 floopies connected to it.
>Then I wanted to add the Archive Viper SCSI tape drive to it:


>	-- IDE   -- one IDE disk, two floopies
>	|
>	|
>	-- SCSI  -- one SCSI tape drive
>       (Adaptec 1542B)


>I connected the tape drive to the SCSI controller, set the jumpers on the
>controller to disable the floppy controllers, and set the power on.
> 
>Well, what I didn't know was that the SCSI controller must recognize at
>least one SCSI hard disk before recognizing other SCSI devices!
>Does it make sense?

not exactly true... looks more like an incompatibility between you
IDE host adapter and the Adaptec.

>It recognizes my IDE hard disk and properly names it
>the C: drive, but then it searches for the SCSI hard disk at address 0:0
>for about 30 seconds before asking me to reset the system.  The error
>message looks something like this:
> 
>        Checking for SCSI Target 0 LUN 0
> 
>When I bypass the reset prompt (by pressing F1 key), it resists to load
>the SCSI BIOS, and completely ignors the SCSI tape drive at address 4:0
>(yes, I have the ASPI4DOS driver installed).
> 
>I read the section of the manual on jumper setting, but I couldn't find
>anything that disables this "feature" in the SCSI BIOS.  
> 
>Am I doing something wrong?  Or is Adaptec promoting the sales of SCSI disks?
> 
> 

Simply disable the BIOS on the Adaptec --- it is only needed if you have
at least one SCSI disk that has to be serviced by the Adaptec.
Install the ASPI4DOS (you need it to run any other drive than a SCSI
hard disk) and you are all set...

It works for me (two IDE drives and a Viper SCSI streamer).

- Clemens
From: danj@hub.parallan.com (Dan Jones)
Newsgroups: comp.periphs.scsi
Subject: Re: active? termination
Date: Wed, 04 Nov 92 10:05:18 PST
Organization: Parallan Computer, Mountain View CA

"peter gottlieb" <peter.gottlieb@channel1.com> writes:

Circuit stuff deleted. 
> 
> Tell me from a theoretical standpoint how these two are different.  It
> sure looks like they are electrically identical.
> 
The difference between SCSI passive termination and SCSI active termination
is more in quality of the termination rather than kind.  Active termination
is much better in configurations which allow for independent insertion and
removal of SCSI devices.

Active termination:

  The values selected more closely match typical flat cable impedance.
  The voltage requlator is insensitive to the termination power resistive
    drop that a remote termination sees across the cable.
  Reduces crosstalk through the termination resistors when using remote
    termination.

Dan
Newsgroups: comp.periphs.scsi
From: vancleef@netcom.com (Henry van Cleef)
Subject: Re: AHA 1542 DMA jumper settings - FAQ?
Organization: Netcom--posted from Andover, Mass.
Date: Sun, 8 Nov 1992 18:06:55 GMT

In article <2AF6C85D.9405@tct.com> chip@tct.com (Chip Salzenberg) writes:
>This question must surely be a FAQ:
>
>  How can I determine the fastest safe DMA jumper settings
>  for an AHA 1542?
>
>adTHANKSvance for any info on this subject.
>-- 
I have exactly the same question, and no one seems to have posted a
response.  I am running with a Micropolis 1624 which claims 10mb for
synchronous transfer rate with SCO Unix---no MS=DOS on this system.

Somebody must have an answer for this.


-- 
Hank van Cleef  vancleef@netcom.com vancleef@tmn.com  Andover, Mass.
Unix systems consultant---kernel, device drivers, networking, X11
SysV, BSD, Sun, Ultrix, AIX, SCO. Porting a specialty. 
	     The Union Institute  History of Science
From: jdp@caleb.UUCP (Jim Pritchett)
Newsgroups: comp.periphs.scsi
Subject: Re: Jumper settings on Archive Viper 150 QIC
Date: 9 Nov 92 23:13:03 GMT
Organization: is sometimes desirable

In article <1992Nov3.203218.15377@morgan.ucs.mun.ca>, Allan Goulding writes:

> Does anyone have some documentation on the Archive Viper 150 QIC 
> which reveals the secrets of the jumper settings? 
> 
> The jumpers are in a 3x3 block labelled as:
>   ____________________
> A |  PEN   CFO   ID0 |
> B |  DIA   CF1   ID1 |
> C |        CF2   ID2 |
>   --------------------
> 

PEN is parity enable.

DIA is a diagnostic jumper - should be open.

The CF pins set the buffer size - factory setting is 16K (0 and 2 closed, 1 open),
max is 32K.

The ID pins set the SCSI ID.


You can get a manual by calling the Tech Support number below.

Archive Corporation Tech Support            (800) 227 6296



                                                Jim Pritchett


UUCP:  rwsys.lonestar.org!caleb!jdp
 or    utacfd.uta.edu!rwsys!caleb!jdp
From: me90plb@brunel.ac.uk (Paul L Barnfather)
Newsgroups: comp.periphs.scsi
Subject: Buslogic SCSI controllers
Date: 11 Nov 92 15:50:31 GMT
Organization: Brunel University, Uxbridge, UK
X-Newsreader: TIN [version 1.1 PL6]

Does anyone have any experience of Buslogic SCSI controllers.
I believe they are Adaptec clones - are they as good ?

I need a SCSI controller to run a hard disk/tape drive/optical drive under
OS/2 - has anyone tried these devices with a Buslogic. The card I have in mind
is a BT-542B, which is supposed to be compatible with an Adaptec 1542B.

The reason I'm asking is the Buslogic is quite a bit cheaper than an Adaptec,
but I'm not sure whether the cheaper card will cause problems.

Any help much appreciated.

Paul
Newsgroups: comp.periphs.scsi
From: neese@adaptx1.UUCP (Roy Neese)
Subject: Re: scsi FAQ
Organization: Adaptec Inc., Texas
Date: Wed, 04 Nov 1992 22:10:50 GMT

In article <1992Nov3.024441.21051@adaclabs.com> mikep@.adaclabs.com (Mike Pechner) writes:
> I was given a program that returns a long string of info for a 
> scsi device.  How much of that string is the device type.  I  was 
> using the first 30 characters, but found that it can be the start 
> of the serial number of the device.  I am down to using the first 
> 24 characters of the string.  How much is correct?

The device type can be derived from the first 2 bytes of INQUIRY data
returned.  Bits 0-4 (inclusive) define the device type in byte 0.  Bit 7
of byte 1 defines whether it is removeable or not.  Much more is
available in the INQUIRY data.  You could call the manufacturer and
request the SCSI specification for the device you are writting/talking
to.  That would give you the vendor specific stuff on the device, or you
could get a copy of the SCSI-2 specification.  Odd as it sounds, I don't
have a clue as to where to get the copy of the spec.  Mine always
magically show up.
---

			Roy Neese
			Adaptec Senior UNIX/SCSI Software Engineer
			UUCP:	convex!egsner!adaptex!neese
			Inet:	neese%adaptex@cirr.com
Newsgroups: comp.periphs.scsi
From: roten@CUBA.gsfc.nasa.gov (Charles Roten)
Subject: Problems with a Maxstor XT 8760 S SCSI drive ... help !!
Organization: /cuba_b/dirbe/roten/.organization
X-Newsreader: GNU Emacs 18.57.1, GNUS 3.13, NNTP 3.10
Date: Thu, 12 Nov 1992 01:01:16 GMT


Last week, I purchased a Maxstor XT 8760 S, as a replacement for a 
dead CDC Wren IV.  It was to be installed on a Sun 386i/250, running 
SunOS 4.0.2.

The 'format' command performed a surface analysis successfully, and 
reported the disk had no defective sectors.  It formatted just fine.  

But when I tried to make a filesystem ... :-( 

{vulcan:5} newfs /dev/rsd0c
preposterous size 0

I have tried two different sets of formatting parameters, one from 
the Maxstor tech. support folks, and another from a Sun 4 format.dat 
file.  Same bad news both times.  

Can someone tell me what gives ?  I am at my wit's end !  

--
Charles Roten | Hughes-STX, Incorporated | 
  roten@cuba.gsfc.nasa.gov               | 'Use the Source, Luke!'
  7601 Ora-Glen Dr., Greenbelt, MD 20706 | 
  301-513-7805 (w),  301-317-0872 (h)    |            Obi-Wan Stallman
Newsgroups: comp.periphs.scsi
From: paul@tvt-k (Paul Pries)
Subject: Re: Cheating of Low Level Format by AHA-1542B
Organization: >Televerket Utbildning, Utf
Date: Thu, 12 Nov 1992 10:49:20 GMT

guest@ncucs writes:


>   I have a Quantum LP105S connected to AHA-1542B.  When it comes with DOS
>v5.0. they live a happy life, but once I install a 386BSD unix system and
>now I will return to DOS, the disk still start the UNIX booting even I have
>using the BIOS offset 0x0006 initialize the HD(it told me that it's a LOW-
>LEVEL format!!!), fdisk and dos format.  That's to say the disklabel written
>by UNIX still attatch in the disk!  

>   I am doubt why the controller can't make a REAL LOW-LEVEL format for the
>SCSI HD, Maybe any have the same problem and the ADAPTEC should provide a
>reasonable explaination and practice solution.  Or others have any tool can
>do it, please inform me, I will be appriciate of you.

Yup. This one is known.
You have to set the control bit "fill data pattern" to do a real low level
format. Quantum drives are hardsectored and only check for added media flaws
when the format command is issued.

My recommendation is to get a program called "scsicntl.exe".
It is available on anonymous ftp somewhere, sorry don't know where.
With this program you can (almost) totally control your disk.

Good luck!
--
Paul Pries
email: 5322@msg.abc.se
Newsgroups: comp.periphs.scsi
From: volker@sfb256.iam.uni-bonn.de ( Volker A. Brandt )
Subject: Re: 1 GB 3.5" SCSI disks
Organization: Applied Math, University of Bonn, Germany
Date: Mon, 9 Nov 1992 14:17:13 GMT

In article <1992Nov4.074603.18021@arbi.Informatik.Uni-Oldenburg.DE> Holger.Lubitz@arbi.informatik.uni-oldenburg.de (Holger Lubitz) writes:
>I have been considering the Fujitsu 2694 until now. It sells for ~3000 DM
>here in Germany. Does anybody have this drive already 

This drive is not yet available in Germany.  Many distributors expect it Real
Soon Now, but I haven't been able to buy one.

-- Volker
-- 
----------------------------------------------------------------------------
Bitnet:   UNM409@DBNRHRZ1                              Volker A. Brandt
UUCP:     ...!unido!DBNRHRZ1.bitnet!unm409             Angewandte Mathematik
Internet: volker@sfb256.iam.uni-bonn.de                (Bonn, Germany)
Xref: sparky comp.periphs.scsi:5365 comp.sys.amiga.hardware:19229
From: snolan@postmaster@hq.af.mil (Scott D Nolan)
Newsgroups: comp.periphs.scsi,comp.sys.amiga.hardware
Subject: Re: Archive Viper 2150S
Date: 9 Nov 92 16:15:50 GMT
Reply-To: snolan@marge.hq.af.mil
Followup-To: comp.periphs.scsi
Organization: 7th Communications Group

In article <1992Nov5.154333.12713@city.cs>, lionel@cs.city.ac.uk (Lionel Tun) writes:
|> The usual story. I bought a pre-used Archive Viper 2150S SCSI tape
|> streamer, but it has no documentation. I am trying to get it to
|> work on an Amiga 3000. The most I can get it to do is move the
|> head up and down and make a noise when I access it from HDBackup.
|> I have set the correct scsi number (unit 2) in the relevant mount
|> list.

Try BTNtape.

It has some pretty good ducmentation about scsi tape drives,
and a tape-handler and mount commands as well (if I remember
correctly).

Good luck
Newsgroups: comp.periphs.scsi
From: rliv@titan.tsd.arlut.utexas.edu (Richard Ronald Livingston)
Subject: NEEDED: Conner format.dat entry
Organization: Applied Research Laboratories, University of Texas at Austin.
Date: Tue, 10 Nov 1992 16:19:16 GMT

    I need a format.dat entry for a Conner CP3500 540MB Hard drive on
    a SUN sparc 2 runing sunOS. 

--
       Semper Fidelis,

         Richard "Ronnie" Livingston

------------------------------------------------------------------------------
 Tactical Simulations  | Internet: rliv@titan.tsd.arlut.utexas.edu             
  Applied Research     | Phone:    512-835-3006                                 
    Laboratories       | Fedex:    10,000 Burnet Road, Austin, Texas 78758-4423
 University of Texas   | Postal:   P. O. Box 8029, Austin, Texas, 78713-8029   
-------------------------------------------------------------------------------
From: craigm@sequoiasequoia.com (Craig Maiman)
Newsgroups: comp.periphs.scsi
Subject: Seagate ST01 Question
Date: 5 Nov 92 18:46:27 GMT
X-Newsreader: Tin 1.1 PL3

Will the Seagate ST01 Host Adapter work with a Seagate ST1480N Hard drive?
I assume both are SCSI-1.

Thanks,

Craig
E-mail: craigm@sequoia.com

Newsgroups: comp.periphs.scsi
From: volker@sfb256.iam.uni-bonn.de ( Volker A. Brandt )
Subject: Re: ADAPTEC 1542 and > 1GB
Organization: Applied Math, University of Bonn, Germany
Date: Mon, 9 Nov 1992 02:20:59 GMT

In article <720579115snx@elysium.novalis.public.sub.org> haerter@elysium.novalis.public.sub.org (Otto Haerter) writes:
>I purchased a IBM 1,2 GB SCSI 3,5"-drive and I can not get it to work, there 
>was poor documentation and I am not a guru :-)

Hi Otto, I bet you bought this drive from Hamilton in Tuebingen ...

Be sure to have an external termination on your SCSI bus, because THE IDIOTS
AT IBM DIDN'T PROVIDE ANY TERMINATION IN THEIR DRIVES!!!!  And they don't tell
you either unless you have the 0663 series "physical specification manual"
which is very hard to get.

And you *also* need the ROM update for your Adaptec (which is probably worth
having anyway).  I sent my disk back and will never buy an IBM disk again
because I couldn't get it to work even after two days of trying :-/

-- Volker

-- 
----------------------------------------------------------------------------
Bitnet:   UNM409@DBNRHRZ1                              Volker A. Brandt
UUCP:     ...!unido!DBNRHRZ1.bitnet!unm409             Angewandte Mathematik
Internet: volker@sfb256.iam.uni-bonn.de                (Bonn, Germany)
Newsgroups: comp.periphs.scsi
From: kschug@cat.de (Kai-Uwe Schug)
Subject: cd-rom/adaptec1740/novell3.11
Organization: C.A.T. Kommunikations-System
Date: Fri, 06 Nov 92 11:10:16 GMT


Hello,

how can I use a CD-ROM drive (NEC CDR73) connect to adaptec host adapter
1740 with my Novell 3.11 server ?

Will I need special software ? Where can I buy this software ?


Kai Schug

---
  Kai-Uwe Schug (kschug@cat.de)                     
  C.A.T. Kommunikations-System, Frankfurt, Germany
Newsgroups: comp.periphs.scsi,comp.sys.sun.hardware
From: rrohbeck@leds.enet.dec.com (Ralf-Peter Rohbeck)
Subject: Re: New DEC DSP5350 and DSP3160 SCSI drives (was: Re: 1 GB 3.5" SCSI disks)
Organization: Digital Equipment Corporation
Date: Wed, 11 Nov 1992 14:54:17 GMT


In article <1992Nov10.200351.29178@elroy.jpl.nasa.gov>, earle@elroy.jpl.nasa.gov (Greg Earle - Gainfully Unemployed) writes...
>In article <1992Nov10.000149.9290@mpifr-bonn.mpg.de> mlelstv@speckled.mpifr-bonn.mpg.de (Michael van Elst) writes:
...
> 
>I've seen these DEC DSP3105 drives mentioned quite a bit, but I just read in
>a trade rag that DEC was introducing two new disk drives at Comdex:
> 
>DEC DSP5350			DEC DSP3160
>5 1/4" form factor		3 1/2" form factor
>3.5 Gb unformatted capacity	1.6 Gb unformatted capacity
>11.5ms average seek time	??.?ms average seek time
>$3495 list price		$1995 list price
> 

Both are *formatted* capacities. Average seek for the 3160 will be similar to
the 3105 (i.e. around 9.5ms)

>Both disks have
>- 512Kb cache
>- Embedded servos
>- (??? bit) ECC

Same 264 bit ECC as usual.

>- Available in 8-bit and 16-bit SCSI-2 configurations (whatever that means)

SCSI-2 allows 8, 16 and 32 bits of data. Don't pin me down on this one -
the 5350 will be available as fast (of course) wide (16) differential (opt.)
SCSI. Note that a wide SCSI device is automatically backwards compatible
with 8 bit devices.

> 
>The phone number listed for further info is (U.S.) (508) 841-3111.
> 
>I had found a 3rd party company that would sell me an external SCSI box with
>2 Maxtor 2112 3 1/2" 1.0 Gb drives, plus enclosure and power supply, all for
>$3500.  I thought this was a pretty good deal until I saw the above (presumably
>list) prices on the new DEC drives!  3.5 Gb for the same price as 1+1, or
>3.2 Gb (in the same form factor) for only $500 more, and that's (apparently)
>list, and not "street".  Sounds too good to be true (so it probably ain't (-: )
> 
>I'm curious to know if anyone has experience with or further knowledge about
>these two drives.  Are they manufactured by DEC, or OEM'd?  (I presume the
>former?)  I'd be thinking of attaching them to either an old Sun SPARCstation-1

 ^ right.

>or possibly a high-end 486DX/50 or 486DX2/66 PC (running 386BSD with an Adaptec
>1742 SCSI controller).  Any compatibility issues or potential problems?  Etc.

                         ^ Let me know. I'm looking forward to get some samples
                           myself.

> 
>Thanks,
> 
>	- Greg
> 
==============================================================================
Ralf-Peter Rohbeck          rrohbeck@kboeng.enet.dec.com           OEM storage
Digital Equipment International GmbH                   Application engineering
Sudetenstrasse 5/P.O.B 1356
W-8950 Kaufbeuren, Germany  (+49) 8341 / 91-4473, fax 8341 / 17802
#include "disclaimer.h"
Newsgroups: comp.periphs.scsi
From: tab@fico.uucp
Subject: IDE & SCSI
Organization: The Fair, Isaac Companies
Distribution: ba
Date: Thu, 5 Nov 92 16:00:46 GMT

I plan to buy a scsi hard drive sometime in the future, but I'd like to keep
one of my IDE drives in my system.  I'm considering an ADAPTEC 1542B controller.Is there a way the IDE and SCSI controllers can coexist in the same system, and
have both drive types be accessible.  

PLEASE HELP ME!



Thanks.

Newsgroups: comp.periphs.scsi
From: gjacobs@qualcom.qualcomm.com (Gary Jacobs)
Subject: Floppy Drive Interface
Summary: Should I use motherboard or 1542B floppy controller?
Keywords: Floppy Interface
Organization: Qualcomm, Inc., San Diego, CA
Date: Thu, 29 Oct 1992 20:05:02 GMT

I have an AMI Baby Voyager motherboard which has a floppy
drive controller built into it.  I just installed an
Adaptec 1542B SCSI controller which also has a floppy
controller.  Is there a benefit to using one over the other?

Newsgroups: comp.periphs.scsi