HDTenEightyP/NetNews huggingface dataset:
From: gasman1@netcom.com (David A. Silva)
Subject: Re: ADAPTEC 1542B OR ULTR
Organization: Netcom - Online Communication Services  (408 241-9760 guest) 
X-Newsreader: TIN [version 1.1 PL8]
Date: Tue, 26 Jan 1993 09:27:36 GMT

Reginald Hirsch (reginald.hirsch@yob.sccsi.com) wrote:
: TO: gasman1@netcom.com (David A. Silva)
: -> I have an Adaptec 1542B. I also have an Ultrastor 14F. The Adaptec is
: -> hands down winner. The Adaptec card and ASPI manager are much more
: -> configurable to tweak best performance from your system. Also, the
: -> Adaptec is being directly supported by OS/2 and WIN NT - with
: -> Ultrastor you have to wait until they develop drivers for these
: -> programs - they will, but they are slow to release them. The Adaptec
: -> can be configured to run 30% faster than the Ultrastor on my system.
:  David I concluded the same after using both , I am interested in your
: "tweaking" can you tell me a little more about your setup and
: experiences , thanks.
:                                                                                     
Sure RH. I am running a clone DX2-50, with 16 meg ram. SCSI II hd, cdrom,
dat tape drive, and flatbed scanner all hang off the 1542B. Luckily most
of the settable parameters for the 1542 can either be set on the card, or
thru the aspi4dos.sys driver. My config.sys line is:

device=c:\dv\loadhi.sys c:\aspi\aspi4dos.sys /d /x01 /n08 /f02 /L

the x parmeter sets DMA transfer speed - 01=6.7 MB/sec
Using Coretest with a 32K block size ( coretest /b:32 ) to minimize scsi
overhead, I adjusted the buson(/n) and busoff(/f) times to give highest
numbers. As you can see, on this system best results are with a buson time
of 8 and a busoff time of 2. The /l parameter enables LUNs.

The only strange thing that happened was originally I had the hard drive
at ID0 and terminated at the end of the internal cable. When I added the
DAT (internal) unterminated at ID4 between the HA and the HD, I couldn't use
DMA transfer speed higher than 5 MB/sec, and the dat did not stream. A
tech person at WangDAT suggested putting the DAT terminated at the end of
the internal cable, and unterminating the HD. For whatever reason, from
then on I could use the faster DMA speed and the DAT now streams beautifully.
-- 
------------------------------------------------------------------------------
				David A. Silva
 	     		"The Sleeper has awakened" - Mua'dib
------------------------------------------------------------------------------
From: craig@kralizec.zeta.org.au (Craig Dewick)
Newsgroups: comp.periphs.scsi
Subject: Re: SCSI computer to computer transfer?
Date: 25 Jan 1993 06:04:47 +1100
Organization: Kralizec Dialup Unix Sydney: +61-2-837-1183 V.42bis
NNTP-Posting-Host: kralizec.zeta.org.au
Keywords: intercomputer communication

In <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?

Yes, it certainly is possible. The SCSI spec details all the conditions
needed for multiple hosts systems, and in fact most of the later SCSI
controller chips include the necessary hardware to enable a multiple
host system to be set up.

As far as software is concerned, this is not my area. I've never 
actually tried to set up a multiple hosts system, but I would like to
try if I could the appropriate backup.

I have a ZRDOS machine here that has a SCSI hard drive on it,
and my main machine (a sort of Unix-like 68k based box) also has a
SCSI hard drive. If I could connect the two busses together, I could
buy a large drive and have each machine access seperate partitions on
the one drive.

I doubt that multiple hosts systems are used very often, since the
software is considerably more tricky from what i'm told.
-- 
 Craig Dewick, Station Master, Possum Power Tank BBS. +612-544-1060 (ringback).
    Send electronic mail to craig@kralizec.zeta.org.au, flames to /dev/null.
                      - Railway Preservation Industries -
          Supporting the Preservation of Australia's Railway Heritage
Newsgroups: comp.periphs.scsi
From: allanh@netcom.com (Allan N. Hessenflow)
Subject: Re: HP/Sun DAT compatibility
Organization: Netcom - Online Communication Services (408 241-9760 guest)
Date: Wed, 27 Jan 1993 22:32:23 GMT

In article <9850059@hpcpbla.bri.hp.com> mark@hpcpbla.bri.hp.com (Mark Simms) writes:
>I have a suspicion that this might be an incompatibility relating to
>the HP and Sun tape drivers rather than the DAT drives themselves.  HP
>systems tend to write with large block sizes and Sun ones with small
>block sizes.  When the Sun system attempts to read the tape written on
>the HP system, it gets the first 512 bytes and then falls over with an
>illegal length record.  This would explain why you get the first
>directory entry.
>...

Thanks for the information; I now have both an HP DAT drive and a WangDAT
1300 on the Sun, so I tried some experiments.  First, the HP drive can
read tapes written on anything (the HP or WangDAT drive on the Sun or
the HP drive on an HP).  The WangDAT can read tapes it wrote or, if I 
use the following command to write the tapes, tapes the HP wrote:
>	tar cvf - files | dd of=/dev/whatever bs=512

No matter what I do, I can't get the WangDAT to read tapes that I write
with the HP drive any other way.  This leads me to conclude that the
WangDAT firmware can't handle long blocks.

allan

-- 
Allan N. Hessenflow       allanh@netcom.com
From: terry@spcvxb.spc.edu (Terry Kennedy, Operations Mgr.)
Newsgroups: comp.periphs.scsi
Subject: Re: Wangtek 5099 ?
Date: 27 Jan 93 04:55:10 GMT
Organization: St. Peter's College, US

In article <5598@morvyth.lulea.trab.se>, hakanl@lulea.trab.se (H}kan Lennest}l) writes:
> I would like to get some technical info on the Wangtek 5099 1/4" 
> tape streamer.
> I think I saw something on the net a couple of months ago but I did
> not then possess such a beast (as I do now)...
> I would like to know about straps, custom scsi commands and such.

  It's quite possible you saw my Wangtek SCSI FAQ. I'll attach it to the
end of this message. However, you don't say which model of 5099 you have -
it comes in EN (QIC-36), EQ (QIC-02) and ES (SCSI) and possibly some OEM
variations. Unless it's an ES, it's not SCSI. There were very few 5099ES
drives made, compared to 5099EN's and 5150ES's.

	Terry Kennedy		Operations Manager, Academic Computing
	terry@spcvxa.bitnet	St. Peter's College, Jersey City, NJ USA
	terry@spcvxa.spc.edu	+1 201 915 9381

X-NEWS: spcvxb comp.periphs.scsi: 6986
From: peters@bsc.guild.org (Peter Sleggs)
Newsgroups: comp.periphs.scsi
Subject: Is ST4766N a good SCSI drive ?
Date: Mon, 25 Jan 93 13:35:30 EST
Organization: Bellatrix Systems Corp., Mississauga, ONT Canada

Is the ST4766N a good drive ?
Any known problems with this drive ? reliability ?
Thanks
peter

--
Bellatrix Systems Corp. Mississauga, Ontario Canada
peters@beltrix.guild.org or beltrix!peters
Newsgroups: comp.periphs.scsi
From: neese@adaptx1.UUCP (Roy Neese)
Subject: Re: adaptec 1542 dma test fails
Organization: Adaptec Inc., Texas
Date: Thu, 21 Jan 1993 20:11:32 GMT

In article <2118@admin.mport.COM> jack@admin.mport.COM (Jack Craig) writes:
> hi net, 
> 
> i have an adaptec 1542 scsi controller stuck in a 386 box of unknown origin.
> when running the dma test at bios, g=dc00:9 it fails with the
> card configured for the slowest dma speed(5.0MB/s).
> 
> does this mean it will fail or might fail under use with dos?
> with unix? experiences?

If the test fails, the adapter will not function in the system.
---

			Roy Neese
			Adaptec Senior UNIX/SCSI Software Engineer
			UUCP:	convex!egsner!adaptex!neese
			Inet:	neese%adaptex@cirr.com
From: hendrick@ctron.com (James R. Hendrick)
Newsgroups: comp.periphs.scsi
Subject: Backup Advice Wanted !!
Date: 25 Jan 93 18:20:51 GMT
Distribution: comp
Organization: Cabletron Systems Inc.


Hello All,
	We are in the process of re-vamping our strategy for performing
backups. Currently, we have slightly less than 5G at one site, somewhat
less at another two sites that must be done each night. In addition, we
perform as-requested backups of many other areas during the day. As
you can well imagine, this is getting a bit out of hand.

	What I would like from you all is recommendations/warnings
about what hardware (stackers, carousels, R/W Optical devices, etc)
and software you have knowledge about. I am NOT looking for blatant
sales pitches, but UNBIASED responses from folks that have to live
with the stuff.

Thanks in advance,

Jim

P. S. I'll summarize if it seems warranted

--
###########################################################################
### Jim Hendrick (hendrick@ctron.com)   ###                             ###
### Cabletron Systems Inc.              ###   " My opinions, etc are    ###
### P. O. Box 5005                      ### exclusively the property    ###
### Rochester, NH 03867-5005            ### of nobody in particular."   ###
### (603) 337-7572                      ###                             ###
### fax:(603)337-7370                   ###                             ###
###########################################################################
Xref: sparky comp.periphs.scsi:6663 comp.sys.ibm.pc.hardware:36985 comp.sys.ibm.pc.misc:17047
From: manaster@yu1.yu.edu (Chaim Manaster)
Newsgroups: comp.periphs.scsi,comp.sys.ibm.pc.hardware,comp.sys.ibm.pc.misc
Subject: Tape (Exabyte 8205) device drivers and backup software.
Summary: Looking for Exabyte device drivers and backup software.
Keywords: device driver backup software Exabyte tape shareware
Date: 24 Jan 93 10:05:15 GMT
Followup-To: comp.periphs.scsi
Organization: Yeshiva University

I would like to install an Exabyte 8205 (a new model), but need to
get device drivers and backup software for it. My system is
basically DOS/Windows (and a small partition for OS/2).

I would prefer hsareware or public domain software if it is any
good (and often it is). If not recommendations for commercial
software would also be useful.

I am aware that Central tools V 8.0 now might bea able to do the
job. I am also aware that Sytos and Novastor (Novaback?) also have
backup software. Can anyone suggest which of these is the way to
go. I currently own Central Tools 7.1 so that an upgrade would be
inexpensive.

One special point about the EXabyte 8205. It has two modes in which
it operates: 8200c (compressed mode) whichis its native default
mode, and 8200 which is for backward compatibility to the earlier
Exabyte 8200 tape drive. I need software that can switch between
these two modes.  The drive responds to a SCSI MODE SELECT (15h)
command.

Thank you very much for the help.

Henry Manaster




-- 
***************************************************************************
	Henry Manaster          *     EMail: manaster@yu1.yu.edu
	Brooklyn, NY            *
                                *
	Disclaimer: The above is not necessarily MY opinion nor that 
				of anyone else :-)  ????!
****************************************************************************
From: pcg@aber.ac.uk (Piercarlo Grandi)
Newsgroups: comp.periphs.scsi
Subject: Re: Noise like a seek coming from new scsi hard drive.
Date: 27 Jan 93 18:45:38 GMT
Followup-To: comp.periphs.scsi
Organization: University College of Wales, Aberystwyth

>>> On 24 Jan 93 23:38:36 GMT, manaster@yu1.yu.edu (Chaim Manaster) said:

Manaster> Every so often on intervals on the order of 20 to 30 minutes
Manaster> apart, (not too regular) there is a momentary sound from the
Manaster> hard drive that lasts for about one second (by my reckoning)
Manaster> and sound like the drive has been given a seek command.

This is more or less a FAQ. There is nothing to worry about; the drive
is simply recalibrating, to check, for example, for possible variations
in temperature, which alter the shape of tracks, and so on.

Modern disk drives are really largish minicomputers, to which an hard
disk is attached, and that provide SCSI service over a parallel bus,
just like a workstation may offer NFS service over a serial bus like
Ethernet (and NFS is a much simpler protocol than SCSI).

These largish minicomputers have several hundred KB of memory, a 16 bit
CPU capable of some MIPS, and a sophisticated multitasking realtime OS,
which runs the various SCSI modules; indeed often the code to handle the
SCSI protocol is so large (well over 100,000 lines of C) that it cannot
be burned entirely into ROM, and there is a filesystem in some reserved
partition on the drive that contains the less used modules.
From: mark@deepspace.ucsb.edu (Mark Lim)
Newsgroups: comp.periphs.scsi
Subject: WANTED:STD-->SCSI manufacturers
Date: 27 Jan 93 01:40:53 GMT
Organization: Astophysics-UCSB

Does anyone know the names and phone #s of companies that make STD bus SCSI
controllers that will support all the interrupt 13 commands and allow direct
SCSI commands to be sent?  E-mail would be appreciated.  Thanks

mark@cfi.ucsb.edu

Newsgroups: comp.periphs.scsi
From: paulg@tplrd.tpl.oz.au (Paul Gittings)
Subject: Archive 5945C :INFO wanted
Originator: paulg@sydrd19
Organization: Telectronics Pacing Systems
Date: Thu, 28 Jan 93 03:57:28 GMT


Anybody have the switch/jumper settings for this drive?  It is
packaged as an Olivetti ST-60 tape drive.

The info is not for me, so could you email responses to 
   paul@DIALix.oz.au

Thanks in advance.
Paul Gittings.


Newsgroups: comp.periphs.scsi
From: martin@scs.carleton.ca (martin chidyausiku)
Subject: COREL SCSI
Organization: School of Computer Science, Carleton University, Ottawa, Canada
Distribution: usa
Date: Wed, 27 Jan 1993 22:23:11 GMT

Hi,

I am just about to update the BIOS chip on my Always IN-2000 SCSI card in the
hope of making it compatible to the ADAPTECH 1542. Has anyone ever done this
? Is it worth thr effort ? I would like to then run a U*x operating system
like LINUX on it. Would it then work ? Any comments will be appreciated.
Please reply using E-mail as Ii don't get to rean news every day.

Thanx in advance.
Martin.
From: jesup@cbmvax.commodore.com (Randell Jesup)
Newsgroups: comp.periphs.scsi
Subject: Re: How to reject multiple byte messages
Date: 25 Jan 93 08:13:46 GMT
Reply-To: jesup@cbmvax.commodore.com (Randell Jesup)
Organization: Commodore, West Chester, PA

jworley@kpc.com (John Worley - Consultant) writes:
>    How does device reject a two byte message, e.g., the tagged
>queue messages? SCSI-2 doesn't seem to specify and I can see two
>scenarios:

	First, no proper device should send you one if you don't say you
support it in your Inquiry data.  If you do say you support it, you should do
so.

>    (1)	The device sends MSG REJECT after the first byte - most
>	devices should do this - after which the sender would
>	need to substitute a NOP message for the 2nd byte, OR
>
>    (2)	The device recognizes the two byte message but doesn't
>	support the operation, accepts both bytes and sends one
>	MSG REJECT.

	That's how I would handle it.

>    Does an initiator need to support both types of rejection? Please
>respond by e-mail.

	If the initiator checks the inquiry data, it shouldn't need to handle
either.  Note that many many modern drives have broken tagged queuing - I've
seen one that took the $20 (SIMPLE_QUEUE) and used it for the count of messages
to fetch, then rejected the whole thing.  I've seen another than on request
sense after using tags will always return BUSY.  A bit like Sync negotiations
in the early SCSI-1 days.

-- 
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.
Xref: sparky comp.periphs.scsi:6685 comp.sys.dec:7111 vmsnet.misc:1184
From: j.laidman@cowan.edu.au (Jeremy Laidman)
Newsgroups: comp.periphs
Subject: Looking for IDE_CONF.EXE
Date: 22 Jan 93 04:41:58 GMT
Organization: The University of Western Australia
Distribution: world
Reply-To: j.laidman@cowan.edu.au (Jeremy Laidman)
NNTP-Posting-Host: scorpion.ac.cowan.edu.au


Can somebody tell me where I can find this program.  It is supposed to tell me
all about my IDE drive.

Thanks

---------------------------------------------------------------------
Jeremy Laidman, Analyst Programmer
School of I.T. and Mathematics                 Phone: (61 9) 370 6648
Edith Cowan University                         Fax:   (61 9) 370 2910
Perth, Western Australia                       j.laidman@cowan.edu.au
From: tanm@seneca.bst.rochester.edu (Martin Tanner)
Newsgroups: comp.periphs
Subject: cd-rom info
Date: 22 Jan 93 14:07:35 GMT
Organization: University of Rochester (Rochester, NY)

Hi,

Does anyone have any information on the pros and cons of the
Fusion 16 cd-rom vs the NEC CDR-74?  Any comments would
be appreciated.  Please e-mail to me- I will summarize for the
net.

Thanks
Martin
Newsgroups: comp.periphs
From: mlaurenc@world.std.com (Matt Laurence)
Subject: HELP! Catalog Damaged!
Organization: The World Public Access UNIX, Brookline, MA
Date: Mon, 25 Jan 1993 17:45:34 GMT

The Damaged Drive catalog strikes again!

The other day, I tried to load a font through Suitcase, and in the
folder menu for my fonts folder on my external drive, Suitcase
claimed that all the fonts after Corona on my drive had been renamed 
Corona. It claimed that I had everything up to C, and then everything 
after that was just copies of Corona. Well, I KNEW that wasn't the
case, so I quit and looked in the font folder. Well, the fonts ended at
C, even though I knew that all the fonts up to Z must STILL be in there.
So I tried to run MacTools, and lo and behold, the catalog file "contains
an invalid backward link from one node to another." Well, that's fine
and good, but MacTools can't repair it! I tried rebuilding the desktop and
doing it again - no luck. When I run Disinfectant on it, it claims that 
many of the font files and a good number of others have damaged resource
forks, though this was not the case two days ago. 

Does anyone have ANY help they could give me? It isn't going away this
time, and I need my fonts and that drive to be functional. I will owe you 
a very big one.

ADVthanksANCE,

Matt
Newsgroups: comp.periphs
From: caf@omen.UUCP (Chuck Forsberg WA7KGX)
Subject: Re: Wanted: recommendations on UPS
Organization: Omen Technology INC, Portland Rain Forest
Date: Thu, 28 Jan 1993 09:26:33 GMT

In article <1993Jan27.201333.10128@ico.isc.com> timhu@ico.isc.com (Timothy Hu) writes:
>In article <1k6o4hINNll9@shelley.u.washington.edu> iho@cac.washington.edu writes:
>>I need to get some UPS systems for my file servers.  If you've been happy
>>with what you're using, let me know the brand and model.  I'm looking for
>>something in the 500 Watt range.
>>
>>-- 
>>Il Hwan Oh                              | "You live and learn.
>>Computer Facilities Manager             |   At any rate, you live."
>>University of Washington, Tacoma        |            -- Douglas Adams
>>iho@cac.washington.edu                  | 
>
>I have a BEST Ferrups 500VA. I've had it for three years. Not a single
>problem. This model is, in effect, an online UPS without the bulk of
>the online circuitry and the advantages of a standby UPS. This
>translates to *reliability*. The battery finally wore out two months ago.
>The folks at BEST said I needed a 31AH maintenance-free battery to replace
>it. The smallest deep cycle battery was a 100AH battery (!), so I just
>got KMart's cheapest car battery ($35) and stuck it in there. I tested

But might a car battery give off fumes that could "eat" the electronics
and/or cause a fire hazard?  Do you really want your $$$ electronics to
look like a car's battery compartment after a while?  I'd want to know
more before making the substitution.

-- 
Chuck Forsberg WA7KGX          ...!tektronix!reed!omen!caf 
Author of YMODEM, ZMODEM, Professional-YAM, ZCOMM, and DSZ
  Omen Technology Inc    "The High Reliability Software"
17505-V NW Sauvie IS RD   Portland OR 97231   503-621-3406
Newsgroups: comp.periphs
From: hm@opus40.ix.de (Harald Milz)
Subject: Info Needed: Graphic Ports and Standards 
Followup-To: comp.terminals,comp.sys.hp,comp.sys.dec,comp.sys.ncr,comp.sys.amiga.hardware,comp.sys.next.hardware,comp.sys.mac.hardware,comp.sys.sgi.hardware
Keywords: graphics connectors
Organization: iX-Redaktion
Date: Mon, 25 Jan 1993 18:26:59 GMT


Maybe it's a FAQ ... I apologize. But I don't subscribe
to this newsgroup regularly, so I don't know. 

I urgently need some pointers (or even better
information) about port layout on graphic cards of
workstations and X-terminals. The aim is to issue a
technical market view of such stuff. Some manufacturers
have answered my questions freely, such as Sun, IBM,
Tektronix and others. HP, DEC and SGI did not, and I
would rather avoid printing an article without their
data (which I would have to do blaming those who didn't
answer). 

Following data is required:

- type of connector and pin layout at the graphic card
  side of the cable
- wave impedance of cabling and signal sources (mostly
  75 Ohms).
- peak signal voltage
- polarity of sync pulses horizontally and vertically
- available resolutions and picture refresh rates

I'd well appreciate every piece of the mosaic since I
have really gotten hot at the moment some of the
manufacturers haven't answered :-)

Please mail directly. Thanks.

-- 
Harald Milz (hm@ix.de)
iX Multiuser Multitasking Magazine
Helstorfer Str. 7, D-3000 Hannover 61
phone +49 511/547 47 66, fax +49 511/547 47 33
Newsgroups: comp.periphs
From: kaufman@Xenon.Stanford.EDU (Marc T. Kaufman)
Subject: Re: Wanted: recommendations on UPS
Reply-To: kaufman@CS.Stanford.EDU
Organization: CS Department, Stanford University, California, USA
Date: 28 Jan 93 04:23:40 GMT

timhu@ico.isc.com (Timothy Hu) writes:

>I have a BEST Ferrups 500VA. I've had it for three years. Not a single
>problem. This model is, in effect, an online UPS without the bulk of
>the online circuitry and the advantages of a standby UPS. This
>translates to *reliability*. The battery finally wore out two months ago.
>The folks at BEST said I needed a 31AH maintenance-free battery to replace
>it. The smallest deep cycle battery was a 100AH battery (!), so I just
>got KMart's cheapest car battery ($35) and stuck it in there. I tested
>it by pulling the plug - I get one hour of power with my 386/VGA. I
>suppose that if I turned my monitor off, I'd get something like two
>hours of power.

I also have a BEST Ferrups 500VA, and think its great.  NOTHING get through it
to bother my equipment... not spikes, not brownouts.

However, there is a BIG difference between the recommended 31AH GelCell
sealed battery and a deep cycle automobile-type battery.  Foremost is that
the sealed battery will not leak corrosive gasses into the room.  There is
also no way to leak the battery acid.  31AH batteries are commonly used in
emergency lighting systems -- look under "Batteries" in the Yellow pages.
They are more expensive than the car battery -- my replacement cost $85.
-- 
Marc Kaufman (kaufman@CS.Stanford.EDU)

Newsgroups: comp.periphs.printers
From: dmiller@beta.tricity.wsu.edu (David L. Miller)
Subject: Accuracy of Laserjet 4?
Organization: Washington State University Tri-Cities
Date: Fri, 22 Jan 93 20:51:18 GMT

Has anyone done any accuracy testing of the LJ4?  I am thinking about getting 
one for printing 1:1 PC board layouts, but I need to know if they are accurate 
enough.

-- 
*****************************************************************************
David L. Miller                       Internet: dmiller@beta.tricity.wsu.edu
Systems Programmer/Network Analyst      BITNET: MILLERD@WSUVM1
Washington State University Tri-Cities    UUCP: ...!yoda!dmiller
100 Sprout Road                          
Richland, WA 99352                       Phone: (509)375-9245
*****************************************************************************
Newsgroups: comp.periphs.printers