HDTenEightyP/NetNews huggingface dataset:
From: jdp@caleb.UUCP (Jim Pritchett)
Newsgroups: comp.periphs.scsi
Subject: Re: Active termination (was Re: You will be terminated!)
Date: Sun, 24 Jan 1993 04:10:12 GMT
 <yJJks*BB1@caleb.UUCP> <1993Jan22.184433.16542@sfu.ca> <ERIC.93Jan22131241@iceland.telebit.com>
Organization: is sometimes desirable

In article <ERIC.93Jan22131241@iceland.telebit.com>, Eric Smith writes:

> >>On Fri, 22 Jan 1993 03:49:22 GMT, jdp@caleb.UUCP (Jim Pritchett) said:
> > Can active terminators be used with SCSI-I devices?  Are they
> > available in plug in form (50 IDC or Centronix connectors) now?
> > Where?
> 
> I've seen plug-in active terminators in both IDC and CHAMP (so-called
> Centronics) connector form.  I don't know where to get them.
> 
> >>On Fri, 22 Jan 1993 18:44:33 GMT, mtichy@fraser.sfu.ca (Martin Tichy) said:
> > Sorry, I just started following this thread.  What is active
> > termination?
> 
> An active terminator actually has one or more voltage regulators to produce
> the termination voltage, rather than using resistor voltage dividers.
> 
> This is a passive terminator:
> 
> 
> TERMPWR     ------/\/\/\/------+------/\/\/\/-----  GND
>                                |
>                                |
>                               SCSI signal
> 
> Notice that the termination voltage is varies with the voltage on the
> TERMPWR line.  One voltage divider (two resistors) is used for each SCSI
> signal.
> 
> 
> An active terminator looks more like this (supply filter caps omitted):
> 
>                +-----------+
> TERMPWR   -----| in    out |------+------/\/\/\/-------SCSI signal
>                |   gnd     |      |
>                +-----------+      |
>                     |             +------/\/\/\/-------SCSI signal
>                     |             |
> GND  ---------------+             |
>                                   +------/\/\/\/-------SCSI signal
>                                   |
>                                  etc.
> 
> Assuming that the TERMPWR voltage doesn't drop below the desired termination
> voltage (plus the regulator's minimum drop), the SCSI signals will always
> be terminated to the correct voltage level.
> 
> Several vendors have started making SCSI active terminator chips, which
> contain the regulator and the resistors;  Motorola is among them.
> 
> In other SCSI chip news, several vendors including TI now make chips with nine
> RS-422 transceivers for use with differential SCSI.  These replace nine 75176
> type parts.

So, this could be used safely on a SCSI-I bus?


                                                Jim Pritchett


UUCP:  rwsys.lonestar.org!caleb!jdp
 or    utacfd.uta.edu!rwsys!caleb!jdp
Newsgroups: comp.periphs.scsi
From: John Hansen <JOHN_HANSEN@MAC.SAS.COM>
Subject: Re: SCSI controllers - Which to pick?
X-Useragent: Nuntius v1.1.1d17
Date: Wed, 27 Jan 1993 17:52:05 GMT
X-Xxdate: Wed, 27 Jan 93 17:52:18 GMT
X-Xxmessage-Id: <A78C36023E010515@bigjohn.mac.sas.com>
Organization: SAS Institute, Inc.

In article <KORDASH.93Jan22194152@kashmir.linus.mitre.org> John L.
Kordash, kordash@linus.mitre.org writes:
>I am interested in picking up a SCSI controller for my ISA 486 PC.  I am
mainly
>interested in getting a controller that will leave as many options open
as
>possible with respect to the operating system I happen to be running.  

I currently have Adaptec 1542b with a Maxtor 213 and a Toshiba T3401
CD-ROM
player. These work great - so far - The Adaptec 1542b is supported by
CorelSCSI's CorelDRV for access to the CD-ROM player. Adaptec supplies 
drivers also. Our Novell Netware server on a DELL 486/50 with 4 - 1.2GB
Maxtor
drives hummmmms happlily with Adaptec 1542b also (which is the reason I
purchased
it for my home system).
John Hansen						| internet John_Hansen@mac.sas.com
SAS Institute Inc.				| work     (919) 677-8001 
SAS Campus Drive, NC 27513		| home     (919) 460-5858
From: au571@cleveland.Freenet.Edu (Timothy R. Linde)
Newsgroups: comp.periphs.scsi
Subject: Optical Tape ???
Date: 21 Jan 1993 22:33:18 GMT
Organization: Case Western Reserve University, Cleveland, Ohio (USA)
NNTP-Posting-Host: hela.ins.cwru.edu


OK, I'm just passing this along looking for information for one of my 
co-workers, somebody had said that they were using an optical tape drive.
I have no idea on what type of machine, but I assume it's SCSI connected.
They did make the distinction that it wasn't an optical disk but an optical
tape drive that they were using.
Has anybody ever heard of such a thing ??
If so, what the heck kind of drive is it ??
I'm just seeking info on it cause nobody at work has any clue about it.


Thanks in advance for any help.
A reply via email would be best, I don't get up to the net too often.


TRL
timelord@cbos.uc.edu
-- 
Creative Financing is the Key to Better  Living.
Newsgroups: comp.periphs.scsi
From: mich@vmars.tuwien.ac.at (Michael Schuster 8726004 (Dipl Joe))
Subject: Re: looking for programming doc for AHA154x
Keywords: adaptec, 1540, 1542, programming, documentation
Organization: Technical University Vienna, Dept. for Realtime Systems, AUSTRIA
Date: Thu, 21 Jan 1993 17:52:17 GMT

I wrote:

>Hi All,
[...]
>Any piece of info, such as an Email address of Adaptec, a ftp access to
>such a document, or a mail message containing one, is very welcome.

Thanks to everyone who replied - I've got the AHA 1542 User manual by
now. Any pointers to different info still very welcome!

Cheers
Michael
-- 
Michael Schuster 		| Place the quote: (author, characters ... )
TU Vienna, Austria		|    "Coincidence was his father and luck his
mich@vmars.tuwien.ac.at		|       inheritance"
+43/1/58801/8181 (sometimes)	|	replies will be rewarded a cookie.
Newsgroups: comp.periphs.scsi
From: randy@psg.com (Randy Bush)
Subject: Re: Adaptec BBS?
Organization: Pacific Systems Group, Portland Oregon, US
Date: Sat, 23 Jan 1993 02:19:46 GMT

surprenc@spb72.jsp.umontreal.ca (Surprenant Colin) writes:
> Hi, anyone nows about an Adaptec BBS with latest drivers and stuff?

If you can FTP, try

   ftp.psg.com:~/pub/adaptec/*
-- 
randy@psg.com   ...!uunet!m2xenix!randy
Newsgroups: comp.periphs.scsi
From: stevenw@compunet.uucp (Steven Weller)
Subject: Flashing LED codes on Viper drive ?
 
 
Organization: CompuNet Systems, Louisville KY (502-231-5908 & 5910)
Date: Mon, 25 Jan 1993 22:20:25 GMT


 
My Archive Viper 2525 (SCSI) drive flashes the LED 2-2-5 and 
hangs up. The manual does not even mention an LED !
 
Any clues ?
 
-- 
: Phone: (502) 425 9560   <<  Steven Weller  >>   Fax: (502) 426 3944 :
:   Windsor Systems, 2407 Lime Kiln Lane, Louisville, KY, 40222 USA   :
:      "A substance almost, but not quite, entirely unlike tea"       :
        stevenw@compunet.UUCP or S.WELLER (GEnie)
Xref: sparky comp.periphs.scsi:6747 comp.archives.msdos.d:790
From: shad04@ccu.umanitoba.ca (Dan Fandrich)
Newsgroups: comp.periphs.scsi,comp.archives.msdos.d
Subject: Re: ASPI for Future Domain?
Date: 27 Jan 93 11:01:40 GMT
Organization: University of Manitoba, Winnipeg, Manitoba, Canada

In article <1993Jan24.031847.26503@netcom.com> bsardis@netcom.com (Barry Sardis) writes:
>A recent Corel ad says that the SCSI drivers support a variety of interface 
>adapters including Future Domain. I have the Corel SCSI drivers which were 
>bundled with my Adaptec 1542b. It only seems to support the ASPI interface. 
>Does anyone know if there is an ASPI driver for Future Domain boards? Is 
>the Corel SCSI driver product that is available through retail capable 
>of supporting a variety of interface boards, Future Domain in particular?

Pioneer has developed an ASPI driver for Future Domain cards.  It was 
designed for their CD-ROM drives, but it might work on other devices
as well.  It's available via anonymous ftp as file pub/pc/aspipc.zip 
at ccu.umanitoba.ca.

>>> Dan
-- 
Internet: shad04@ccu.umanitoba.ca               Compu$erve: 72365,306
Newsgroups: comp.periphs.scsi
From: sja@world.std.com (Stuart J Adams)
Subject: Which 1 Gig drive to buy ????
Organization: The World Public Access UNIX, Brookline, MA
Date: Thu, 28 Jan 1993 20:46:33 GMT

I am planning on buying a 1+ Gig drive and was wondering
if anyone had any suggestions ??? I have my eye on a 
Fujitsu 2266S from East Coast Electronics for $1279.

Thanks,
Stuart Adams
sja@world.std.com

Newsgroups: comp.periphs.scsi
From: rchalk@nyx.cs.du.edu (richard chalk)
Subject: WANTED ADAPTEC 1542B
Organization: Nyx, Public Access Unix @ U. of Denver Math/CS dept.
Distribution: na
Date: Mon, 25 Jan 93 20:40:22 GMT

I am looking for an Adaptec 1542B SCSI adapter.  Must be complete with
all documentation, etc.  Please e-mail me if you have one to sell

Richard
From: chad@eng.umd.edu (R Michael McMahon)
Newsgroups: comp.periphs.scsi
Subject: Sector size with 1542b?
Date: 21 Jan 1993 23:10:24 GMT
Organization: College of Engineering, Maryversity von Uniland, College Park
Distribution: world
NNTP-Posting-Host: ampere.src.umd.edu
Originator: chad@ampere.src.umd.edu


I recently purchased a used Fujitsu drive to go with my Adaptec 1542b SCSI 
host. I can't get the disk to work properly with my system, and believe it
has something to do with sector size. First off, I have sucessfully installed
several other SCSI devices, and know much about parity, ids, termination, etc.
I doubt this is the problem. When booting, the Adaptec BIOS installs the disk 
as drive D, as it should. Using FDISK, an error message immediately states 
'drive 1 not responding,' referring to drive D. If I try to create a partition
anyway on drive D, FDISK crashes with a divide by zero error.

Under Linux, my primary OS, I get a more informative kernel error during 
boot that 'sector size not recognized'. The former owner for this disk gave 
me the following data:

SCSI information for /dev/rsd0a
Drive type: R.A.R.E.RS3105
512 bytes per sector
57 sectors per track
14 tracks per cylinder
2570 cylinder per volume (including spare cylinders)
14 spare sectors per cylinder
0 alternate tracks per volume
2050859 usable sectors on volume


Can anyone see a problem with these drive parameters? Is there a way to 
change the disk sector size?

Thanks alot in advance.

Mike McMahon
chad@src.umd.edu
Newsgroups: comp.periphs.scsi
From: grant@bluemoon.use.com (Grant DeLorean)
Subject: Re: cd rom info
Organization: Blue Moon
Date: Tue, 26 Jan 93 05:34:43 GMT

tp923021@jarrah.canberra.edu.au (ben elliston) writes:

>Organization: Compact Solutions, Canberra ACT Australia

> > Does anyone have any information on the pros and cons
> > of the
> > Fusion 16 cd-rom vs the NEC CDR-74?  Any comments

>I assume the Fusion 16 CD-ROM would be a Sony unit (ie. 150k/sec transfer rates).

>The NEC uses double-rotation technology to push 300k/sec on reads.

 And the new Toshiba 3401 is faster than the fast NEC (200 ms access,
375 DTR are the numbers for the 3401 and after using it are very
beleivable and verifiable). I like NEC, but in this case their
thunder is about to be stolen... 
-- 
\   Grant DeLorean  - IHMSA & NRA Life Member -  (grant@bluemoon.use.com)   /

        Good leaders being scarce, following yourself is allowed.

Newsgroups: comp.periphs.scsi
From: mbeyer@zamboni.NSP-SERVER1 (Mark Beyer)
Subject: Apple Scanners
Reply-To: mbeyer@zamboni.NSP-SERVER1
Organization: Tandem Computers Inc.
Date: Tue, 26 Jan 1993 01:46:40 GMT


Anyone know how to make an Apple scanner work on DOS ?  The scanner is, I think,
their original 4-bit thing.  I have an Adaptec 1542.

Reply by mail, please.  I'll post a summary if there's interest.

Thanks!

Mark
From: jesup@cbmvax.commodore.com (Randell Jesup)
Newsgroups: comp.periphs.scsi
Subject: Re: Seagate and Macintosh...
Date: 25 Jan 93 08:35:52 GMT
Reply-To: jesup@cbmvax.commodore.com (Randell Jesup)
Organization: Commodore, West Chester, PA

>Actually, you are allowed to drive the bus high, but you can't do it
>continuously, only when you know you "own" a signal.  This is essential to
>achieve high data rates.  The chips that do this typically only drive it
>high for a short time when they deassert a signal.

	The common term for this is "active negation".  Many of the newer
SCSI-FAST chips will do this.

-- 
GNU Emacs is a LISP operating system disguised as a word processor.
 - Doug Mohney, in comp.arch

Randell Jesup, Jack-of-quite-a-few-trades, Commodore Engineering.
jesup@cbmvax.commodore.com  BIX: rjesup  
Disclaimer: Nothing I say is anything other than my personal opinion.
From: jdp@caleb.UUCP (Jim Pritchett)
Newsgroups: comp.periphs.scsi
Subject: Re: You will be terminated!
Date: Fri, 22 Jan 1993 03:49:22 GMT
Organization: is sometimes desirable

In article <ERIC.93Jan21064527@iceland.telebit.com>, Eric Smith writes:

> There do exist active SCSI terminator chips, but they are only terminators,
> not controllers.  With luck the drive and host adapter manufacturers will
> start using these rather than three resistor networks which get removed and
> lost.

Can active terminators be used with SCSI-I devices?  Are they available in
plug in form (50 IDC or Centronix connectors) now?  Where?


                                                Jim Pritchett


UUCP:  rwsys.lonestar.org!caleb!jdp
 or    utacfd.uta.edu!rwsys!caleb!jdp
Newsgroups: comp.periphs.scsi
From: tt@tarzan.jyu.fi (Tapani Tarvainen)
Subject: Re: SCSI computer to computer transfer?
Originator: tt@tarzan.math.jyu.fi
Organization: University of Jyvaskyla
Date: Thu, 21 Jan 1993 06:46:53 GMT

In article <1993Jan20.130158.15414@klaava.Helsinki.FI> veijalai@klaava.Helsinki.FI (Tony Veijalainen) writes:

>Mac Portable (/Duo) can appear as HD for Mac, I heard (and/or other way
>arround). Is it possible to have to hosts accessing same drives and
>possibly moving information memory to memory also?

In theory it is perfectly possible to have two hosts on the same
SCSI bus and use the same drive(s), _if_ the operating system(s)
in question can cope with that (and a bunch of ifs about hardware,
e.g., some controllers may not like each other).

As for the Mac PowerBook 160/180 is concerned, if it detects the disk
adapter cable is connected at turn-on, it begins to behave like a
disk, disabling the keyboard &c -- only power switch will work.  
So you can't run any programs in it while it's connected that way.

As far as memory-to-memory moves are concerned, of course SCSI bus
could be used as a general-purpose information channel, but whether
it can be done with any existing software/hardware combination,
I don't know.  With the Macs certainly not.
--
Tapani Tarvainen  (tt@math.jyu.fi, tarvainen@finjyu.bitnet)
Xref: sparky comp.periphs.scsi:6728 comp.os.ms-windows.programmer.win32:3097
From: westes@netcom.com (Will Estes)
Newsgroups: comp.periphs.scsi,comp.os.ms-windows.programmer.win32
Subject: Anyone Make a VESA-LB SCSI Adapter?
Date: 26 Jan 93 20:11:54 GMT
Organization: Mail Group

Now that VESA local bus clones are starting to come onto the market,
does anyone make a VESA-LB compliant SCSI host adapter?  I am 
particularly interested in finding one that does bus mastering and
also works with Windows/NT.

-- 
Will Estes		Internet: westes@netcom.com
Newsgroups: comp.periphs.scsi
From: pi@cs.sun.ac.za (Pieter Immelman)
Subject: Re: Noise like a seek coming from new scsi hard drive.
Reply-To: pi@cs.sun.ac.za
Organization: University of Stellenbosch
X-Newsreader: TIN [version 1.1 PL8]
Date: Tue, 26 Jan 1993 07:50:51 GMT

In <paul.727942408@suite.sw.oz.au>, Paul Antoine (paul@suite.sw.oz.au) wrote:
: This is normal: most newer drives do this to avoid a stiction problem
: first made famous in Quantum hard drives (the 40, 80 and 100MB Pro
: Drive series).  It is not harmful, and only occasionally impinges upon
: both the senses and performance of the drive (at least, my Fujitsu
: seems to do it regardless of other disk operations in progress).

The same happens with my Micropolis drive.  The only thing that puzzles
me is that all these SCSI drives are supposed to be intelligent, so why
is it trying to move the heads around while they are actually moving
around doing reads and writes?  Why can't these drives wait until it is
idle for a while before moving the heads around?!

-- pi
Newsgroups: comp.periphs.scsi
From: thomsen@netcom.com (David Thomsen)
Subject: Re: Optical Tape ???
Organization: Netcom - Online Communication Services  (408 241-9760 guest) 
Date: Fri, 22 Jan 1993 15:49:57 GMT

I have seen an optical tape drive at a trade show (AIIM, SanFrancisco, circa
1988).  It used tape that was approx. 2 inches wide and was written with 
a laser.  The media was $10,000 (yes, 10 thousand) per reel and it could  
hold something like a terabyte (so they said).

It was fascinating to look at and the company supposedly had the entire
production sold for the next two years to the US Gov't.  Places like
NOAA, etc. according to them.

Dave Thomsen
From: jack@admin.mport.COM (Jack Craig)
Newsgroups: comp.periphs.scsi
Subject: Re: Pioneer DRM-600 Upgrade comments?
Date: 25 Jan 93 18:53:03 GMT
Organization: Microport Inc., Scotts Valley, CA 95066 US of A

just fyi, peripheral solutions has a stock of these units.

408-425-8280

i am still finishing the packaging for sgi support
software for same. i like the unit, it is faster, but i havent
had a chance yet(will soon) to bench mark performance.

jack...
=============================================================================
 Jack Craig  Software Horizons     408-684-1375    uunet!sco.com!blznrzn!jack
=============================================================================
Newsgroups: comp.periphs.scsi,comp.periphs
From: cs000rjp@selway.umt.edu (Russell J. Pagenkopf)
Subject: Re: Wanted: List of translation board XXX<-->YYY
Organization: University of Montana
Distribution: usa
Date: Mon, 25 Jan 1993 12:04:21 GMT

In article <1993Jan25.061644.23713@ennews.eas.asu.edu> hougland@enuxhb.eas.asu.edu (Kriss A. Hougland) writes:
>I'm intrested in finding out what all the translation boards do.  I've
>seen quite a few describled, but I have not seen a good list.
>
>Some of the converts I have heard about are:
>
>QIC-02 <-> SCSI
>QIC-36 <-> SCSI
>ESDI <-> SCSI
>MFM <-> SCSI
>RLL <-> SCSI
>SMD <-> SCSI
>
>The manufactors of such boards are/WERE:
>
>Adaptec
>NCR
>OMTI/SMS
>EMULEX
>

PARALLEL -> SCSI
Hewlett Packard


-- 
  Russ Pagenkopf	                          cs000rjp@selway.umt.edu
 School of Journalism, University of Montana         cs__rjp@lewis.umt.edu
<There is no other wisdom, and no other hope for us but that we grow wise.>
Newsgroups: comp.periphs.scsi
From: "steven baldassarra" <steven.baldassarra@canrem.com>
Subject: Adaptec 1542B with HD's greater than 1 GB
Reply-To: "steven baldassarra" <steven.baldassarra@canrem.com>
Organization: Canada Remote Systems
Distribution: comp
Date: 21 Jan 93 01:57:05 EST



FJ>So, are you going to keep us in suspense, or are you going to describe
FJ>where and how (the important bits) rather than when (which we could
FJ>care less about)?  Hard to believe that Adaptec would just give away
FJ>the parts -- after all, hardware DOES cost money.

FJ>This upgrade is also for the AHA-174x series, correct?

This uprgrade is free. I call Adaptec's tech. support Monday ask for
the ROMs upgrade for my AHA-1742A. I received the upgrade ROM chips
today (Wednesday). But they send me the wrong chips, I received the
ROM chips for 154x instead, so I call them again and they are going to
send me the correct one today. When I ask them, what to do with the set
for 154x, they told me to keep them.

I think Adaptec really improve their Tech. support.

Steven
---
  DeLuxe 1.21 #6922  
--
Canada Remote Systems  - Toronto, Ontario
World's Largest PCBOARD System - 416-629-7000/629-7044
From: toy@soho.crd.ge.com (Raymond L. Toy)
Newsgroups: comp.periphs.scsi
Subject: Buffer switches on Archive Viper 2150S
Date: 21 Jan 93 14:11:56 GMT
Organization: GE Corporate R&D Center


I have an Archive Viper 2150S tape drive and I'm curious about the
buffer size switch settings.  The manual (rather, sheet) says the
switches control the size of the largest block that can be sent before
disconnect.  What exactly does this mean?  Does it mean that the drive
will not disconnect until a block of that size is received?

In any case, what would be a good value for this setting?  It goes
from 2K, 4K, 8K, 16K, and 32K and some others that I can't remember.
Since I have the option, I'd like to make the drive reasonably fast
without bogging down my SCSI harddisk.

Thanks for any info.

Ray

-- 
Ray -----> toy@soho.crd.ge.com
Toy
Newsgroups: comp.periphs.scsi
From: randyd@tfs.com (Randy Daniels)
Subject: Cipher 540CT and Emulex E4263
Organization: TRW Financial Systems
Date: Thu, 28 Jan 1993 20:36:00 GMT


		O.K. guys brush away the cobwebs.

		I have the two puppies to setup.

		Cipher 540CT tape drive with an emulex scsi adapter.

		Anybody know the jumper settings and switch settings
		for either one?


Organization: Freshman, CIT general, Carnegie Mellon, Pittsburgh, PA
Newsgroups: comp.periphs.scsi
Date: Tue, 26 Jan 1993 11:12:33 -0500 
From: "Peter W. De Bonte" <pd2n+@andrew.cmu.edu>
Subject: WANTED: Source of small SCSI fixed disk drives

I am looking for a source of small (say 40-80Meg) SCSI disks.
Anyone know who sells cheep ones (Most ppl now seem to thing SCSI disks
have to be several hundred meg or something.. I don't get it.)

Also, if anyone has a used one for sale, please email me.  Thanx much!

Work hard and prosper,

Pete W. De Bonte (x4173)                    pwd+@cmu.edu 
"Knolege is powef, Speling is unimportnt"   (but pd2n is unaceptable)
Newsgroups: comp.periphs.scsi
Subject: Re: I need more serial ports!! (Sun ELC)
From: bobw@techsun.usu.edu (Bob Wood X3205)
Date: 27 Jan 93 11:05:04 MDT
Reply-To: bobw@techsun.usu.edu
Distribution: world
Organization: Sun Microsystems, Inc.

Central Data Company has SCSI serial port expanders starting at $700.

Address 1602 Newton Drive, Champaign Drive,IL 61821   (800)482-0315
---
===============================================================================
 Bob Wood        	Computer Specialist 				
 Utah State University	Computer Science
 voice: (801) 750-3205	fax: (801) 750-3265
 Internet:		bobw@techsun.cs.usu.edu 
 			bobw@cc.usu.edu
 BITNET:		bobw@usu.BITNET
 SPAN:			USU::BOBW
===============================================================================
Newsgroups: comp.periphs.scsi
Subject: SCSICNTL.EXE with Adaptec 1510
From: rison@nrlvx1.nrl.navy.mil
Date: 25 Jan 93 15:34:07 -0400
Organization: NRL SPACE SYSTEMS DIVISION

SCSICNTL.EXE does not work on Adaptec 1510 controller.

The program hangs looking for devices on SCSI bus.
Any ideas?
Newsgroups: comp.periphs.scsi