HDTenEightyP/NetNews huggingface dataset:
From: donyee@athena.mit.edu (Donald Yee)
Subject: SCSI bad sectors?
Organization: Massachusetts Institute of Technology
Date: Sat, 26 Sep 1992 21:17:18 GMT

I recently bought a Seagate 4702N (Wren 5) SCSI disk from a man who
represented it as a new disk.  However, when I formatted it using
FDISK under DOS 5.0 (with a Seagate st01 SCSI card), it indicated that
the total size of the disk was 573 MB, as opposed to the spec sheet
for the 4702 disk, which indicated 601, or 615 MB, depending on the
block size and sparing scheme. I'm not sure what the latter means.  Is
it possible that one could lose so much (about 27 MB) just because of
the "sparing scheme?".  Also, when a SCSI disk goes bad, does CHKDSK
reveal any "bad sectors" per se, or does the SCSI electronics on the
drive somehow map out "bad sectors" and adjust the indicated available
space appropriately?  Basically, in other words, should I be upset or
not that apparently 5% of a "new" disk is bad or missing?  A reply via
e-mail would be appreciated as hunting down a reply in a newgroup
takes a while, but feel free to post the answer in addition.  Thanks

donyee@athena.mit.edu
Newsgroups: comp.periphs.scsi
From: claude@spc9.jpl.nasa.gov (Claude A. Felizardo)
Subject: Help wanted installing 2nd SCSI in PC.
Organization: Jet Propulsion Laboratory, Pasadena, CA
Date: Sat, 3 Oct 1992 10:17:24 GMT

I'm having problems trying to get two SCSI drives working on my computer.
I can only get one working at a time, not at the same time.  My config is
as follows:

	386-BIOS 1989 American Megatrends Inc.

	1986-1989 FUTURE DOMAIN CORP
	SCSI Disk Drive ROM BIOS V6.0A

	SCSI 0 LUN 0  SEAGATE ST296N Firmware Rev. <>

	SCSI 1 LUN 0  MAXTOR 7120SCS Firmware Rev. 3235

Both drives are 512 Bytes per sector.

I have no docs on the host adapter, How do I determine the model?  How can
I contact Future Domain?

Because of drive bay layout in my Middle Tower, the Seagate (5.25") is in 
the middle of the cable, Maxtor (3.5") is at the end.  Terminating resistors
removed from Seagate.  I have tried many combinations of SCSI IDs on both
drives.  They work fine by themselves.  FDISK never gives option of selecting
2nd drive.  Currently have CMOS settings as NO DRIVE, setting type 47 (custom)
only resulted in report of bad Hard Disk.  Removing "LASTDRIVE=G" from 
config.sys file did not help.

My guess is either I have an incompatible BIOS or an old adapter.  Any clues?
Please respond via email as our news server is unreliable at times.

thanks.

---------------------------------------------------------------------
Claude A. Felizardo           Jet Propulsion Laboratory, M/S:525-3684
claude@spc6.jpl.nasa.gov      4800 Oak Grove Dr,  Pasadena, CA  91109
Newsgroups: comp.periphs.scsi
From: vail@tegra.com (Johnathan Vail)
Subject: Re: SCSI bad sectors?
Organization: Tegra-Varityper, Inc. Billerica, MA
Date: Tue, 6 Oct 1992 18:12:14 GMT



In article <1992Oct5.211617.26609@athena.mit.edu> donyee@athena.mit.edu (Donald Yee) writes:

   While this running argument between Bill W. and John V is running, may
   I interject that it is not just apple that describes a megabyte as
   1024^2.  FDISK (presumably by Microsoft) for PC compatibles on partitioning
   a new disk uses that definition also.  That is how it all started.  According
   to Seagate, my disk, 702 Megabytes unformatted, 601 formatted, comes out to
   573 MB according to FDISK.  I asked if something was wrong.  Hence this
   thread.

I don't want to come out as necessarily favoring the decimal based
measuring system for bytes.  Bill obviously has his preference and
seemed to be implying some kind of plot by drive vendors to make
fraudulent claims.  Since I had researched the subject for my own
software and arrived at a different conclusion I wanted to point to
some reasons why the drive vendors are "different".

      [other parts deleted because I don't want to rehash the facts]

I agree that consistency would be nice.  And I don't see a "right" way
here.  Maybe everyone will agree some day but until then calculate it
yourself if you want to be %100 accurate and realize that measuring
memory and disk capacity are apples and oranges.

jv

 _____
|     | 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)
Newsgroups: comp.periphs.scsi,comp.sys.sun.hardware
From: janet@cs.uwa.oz.au (Janet Jackson)
Subject: Re: SparcStation Display Problem
Organization: Dept. Computer Science, University of Western Australia.
Date: Thu, 1 Oct 1992 05:41:04 GMT

In <1992Sep25.172743.12473@ukw.uucp> lupe@ukw.uucp (Lupe Christoph) writes:

>ryan@dup.cs.fsu.edu (John Ryan) writes:
>
>>I have a Sun SPARC station IPC with a color monitor.  The monitor is
>>a model GDM 1662B. My problem is this:
>
>Your problem is not SCSI related. Please keep your postings focused.

Huh?  He didn't mention SCSI.

He mentioned the monitor model, which as far as he knew may well have been
relevant.  I don't see anything wrong with putting in extra information.

I haven't seen this problem, but it does sound like the terminal settings
are bad.  Look at the manual pages for tset(1)/reset(1) and stty(1).
There may be something inappropriate in .login (or other shell startup
file).

Janet Jackson
<janet@cs.uwa.edu.au>
Systems Administrator
Department of Computer Science
The University of Western Australia
Newsgroups: comp.periphs.scsi,comp.sys.hp
From: ae60@iamk4515.mathematik.uni-karlsruhe.de (Christoph Baumhof)
Subject: Problems accessing HP35470A DAT drive
Organization: University of Karlsruhe, Germany
X-Newsreader: Tin 1.1 PL4
Date: Mon, 28 Sep 1992 10:32:59 GMT

Hello,

I connected a HP 35470A DAT to a Sun ELC (SunOS 4.1.1) and I finally
managed to get these two talking by setting the DIP switches of the
DAT 1-5 on, 6-8 off. But now, I'm getting strange errors (file is
about 10 MB):

dd if=file of=/dev/nrst0 bs=32k
dd: write: I/O error
225+0 records in
225+0 records out

In the middle of the dd operation, the DAT spins up and winds the
tape forth and back again, meanwhile, the console shows

st0:       SCSI transport failed: reason 'timeout': giving up
Sep 28 11:20:50 iamk4515 vmunix: esp0: Disconnected command timeout for Target 4 Lun 0
st0:    Error for command 'write file mark', Error Level: 'Retryable'
Block: 224
Sense Key: Aborted Command
Vendor (Vendor 'HP      ' Product 'HP35470A        ' ) Unique Error Code: 0x4e

The 224 written blocks can then be read back without errors, but
I can't get the DAT to write files greater than perhaps 3-5 MB.
The amount of data that is written successfully varies greatly.

Does anyone have a suggestion what can be wrong here? Does anyone know
where the vendor unique codes are documented? Most of the time, I'm
getting code 0x4e, but sometimes I've got 0x44.

Looking for help....

Christoph Baumhof
e-mail: ae60@rz.uni-karlsruhe.de
Newsgroups: comp.periphs.scsi
From: gottsch@mikro.ee.tu-berlin.de (Gert Gottschalk)
Subject: Audio CD's with 1542B and Toshiba 3301
Keywords: 1542 audio CD
Organization: ZRZ/TU-Berlin
Distribution: tub
Date: Tue, 29 Sep 1992 12:50:37 GMT

Hi there !

I have a Toshiba 3301 CD-ROM with Adaptec 1542B and the Adaptec Driverkit
installed on my 486 PC-Clone running DOS 5.0. The Drive has audiooutlet 
and I intend to use it. Up to now none of the usual 'playcd'-programs has
been able to play audio CD's from this drive-controller-combination. 
Is there any such program ? Are there things I could have made wrong ??

Any help is appreciated.
Newsgroups: comp.periphs.scsi
From: u911661@bruny.cc.utas.edu.au (Mad Mal)
Subject: WORM drives again..(On Track)
Organization: University of Tasmania, Australia.
Date: Sat, 26 Sep 1992 14:05:35 GMT

I have been told that there is a program called something like 'On Track'
that should allow me to use a worm drive with >32Mb partitions on a Pc running
DOS 3.3 ...  Is this so?

If it is...could I please have some more details...

If not...how do I get the drive going as it refuses to work on anything but
DOS 3.3 ...

HELP ... I want this thing to go ... It is getting desperate ...

Mal.


--
Anybody who claims to know everything knows nothing, as anybody who knows           anything knows that nobody can know everything.                                                                  
<-- Me, otherwise known as:                                                                                                                                     Snail Mail: 4 Ben Street                     u911661@bruny.cc.utas.edu.au                   Wes
t Hobart                                                                     Tasmania,                                                                       Australia. 7000
From: bwilliam@iat.holonet.net (Bill Williams)
Newsgroups: comp.periphs.scsi
Subject: Re: 3-1/2" vs 5-1/4" MO disks questions. (Are 5-1/4 inchers dinosaurs?)
Date: 30 Sep 92 06:41:18 GMT
Organization: HoloNet (BBS: 510-704-1058)


sdm7g@Virginia.EDU queried:

"Is there any danger of the larger format becoming extinct?"


Ha! I doubt that 3.5 inch devices will replace larger 5.25 inch format
opticals for two very very important reasons.....

My Tahiti II can read sustained data at over ONE MEGABYTE PER SECOND on a
1 gigabyte cartridge. The cartridges, even GLASS non-oxidizing substrate,
of Maxtor brand, are available for $199 in retail quantity of 1 pricing.
(Such as NCA in the Silicon Valley)...

But the 121 Megabyte ISO compliant 3.5 inch devices usually do not support
glass non-oxidizing media nad the plastic 121 Megabyte cartridges usually
cost $40 each. And the data tranfer sustained on a 121 megabyte removable
is usually UNDER 200K per second!!!! Ugh! I'd almost rather use a floppy.

When blue lasers from Sony ship, then small format media can hold 1
Gigabyte (just like Maxtor Tahitis have for over 3 years) and when the
devices cost more and users demand more speed to approach the > 1 Megabyte
per second rate of 5.25 inch devices THEN and ONLY THEN could a prediction
of the death of a medium be valid. Even so, Sony just anounced another 12
inch device that holds over 6 gigabytes.

Bigger is better sometimes. That is why disks with useful capacities are
still over 2 inches wide.

Bill Williams
From: rrohbeck@kboeng.enet.dec.com (Ralf-Peter Rohbeck)
Newsgroups: comp.periphs.scsi
Subject: Re: Manufacturer Labels on SCSI Disks
Date: 28 Sep 92 17:14:37 GMT
Reply-To: rrohbeck@kboeng.enet.dec.com
Organization: Digital Equipment Int. GmbH


In article <1992Sep25.215807.21079@lmpsbbs.comm.mot.com>, lenz@ssd.comm.mot.com (Doug Lenz) writes:
>I have sort of a "I wonder how they did that?" kind
>of question.  Some of the bigger catalog houses that
>sell their own brands of disk-subsystems have
>what appear to be generic SCSI disks with customized
>labels.  What I mean is say a company called XXX sells
>a subsystem with a drive by YYY (fill in your favorite
>SCSI manufacturer).  When you boot (in Messy-Dos at 
>least) the controller cards usually display the disk
>label:
>
>	Found YYY Model ??? 	XXX
>
>Somehow these companies have put a custom "ad" in the
>disk label.  Are these labels put in by the disk
>manufacturer (mail order company say's "We'll buy
>millions of your disk if you put OUR name in the
>disk label") or is there a way to do this using normal
>SCSI commands.
>
>Just was wondering (hasn't anybody else wondered?)
>
>Doug Lenz
>
That's easy. Every drive has some sort of nonvolatile storage, e.g. EEPROM,
flash EPROM, battery backed RAM, you name it.
The OEM specific stuff is put there during board manufacturing and/or later
during drive production. SCSI leaves lots of possibilities for manufacturer
specific commands, mode pages etc. to do that. But no manufacturer will tell
you how except for very good reasons (and after having you sign nondisclosure
agreements.) :-)  

Ralf-Peter
--
===============================================================================
Ralf-Peter Rohbeck          rrohbeck@kbomfg.dec.com         Product engineering
Digital Equipment Int. GmbH rrohbeck%kbomfg.enet.dec.com       Disk drive plant
Sudetenstrasse 5/POB 1356   ...!decwrl!kbomfg.dec.com!rrohbeck)      Kaufbeuren
W-8950 Kaufbeuren           (+49) 8341 / 91-4473                        Germany
#include "disclaimer.h"
From: jeff_d@npri6.npri.com (Jeff Davis)
Newsgroups: comp.periphs.scsi
Subject: Q about ACB4000a and Macintosh
Summary: Q about ACB4000a and Macintosh
Keywords: mac, adaptec
Date: 28 Sep 92 22:37:10 GMT
Distribution: world
Organization: NPRI, Alexandria VA

I have a question about using the Adaptec ACB4000A MFM-to-SCSI controller
board with Macintosh computers.

The ACB4000A can control 2 MFM drives, but I have not been able to get this
combination working on a Mac (works on a Sun).  The mac only sees drive 0
and ignores drive 1.  Has anyone had any experience with this setup?

It works with one drive as drive 0.  When I add another drive as drive 1,
drive 0 is still visable, but drive 1 is not seen.  I would at least 
expect that it would be seen as one big drive (71M + 71M as 142M).  Both
drives work when used alone as drive 0.

I am using APS's drive formatting software, version 2.6.1 I believe.

Any help appreciated,
Jeff
--
+------------------------------------------------------------------------------+
| Jeff  | US Mail :  602 Cameron Street, Alexandria, VA 22314, USA             |
| Davis | Usenet  :  jeff_d@npri6.npri.com  OR  ...uunet!uupsi!npri6!jeff_d    |
|       | Voice   :  Work - 703.683.9090  Home - 703.971.7244                  |
+------------------------------------------------------------------------------+
|   "Don't ever think that you can't change the past or the future" - Kate     |
+------------------------------------------------------------------------------+
Newsgroups: comp.periphs.scsi
From: sck@watson.ibm.com (Scott C. Kennedy)
Subject: Re: scsi disks, can I buy one for the mac and switch to a pc later?
Date: Thu, 01 Oct 1992 13:26:34 GMT
Disclaimer: This posting represents the poster's views, not necessarily those of IBM
Organization: IBM T. J. Watson Research Center

In article <EJH.92Sep30172736@khonshu.colorado.edu>, ejh@khonshu.colorado.edu (Edward J. Hartnett) writes:
|> 
|> I hope this is the right place to ask this. Let's say I want to buy a
|> 60 MB hard disk for my mac plus. Do I need sw drivers, or do I just
|> plug it in? In unix I need to know the format.dat entry information
|> (number of cylynders, tracks, etc), how is this done in the mac and on
|> the PC? 

With the Mac, you can just connect the drive up and (if you have a Mac
with a builtin SCSI connector) the requester for unformatted disk pops up.

With the PC, you just run the software that comes with your Harddisk
Controller card (this will do a low-level format), then run fdisk (to partition
the drive), and then you format each partition.

|> What I want to do is buy a disk for my mac plus, use if for a
|> few years, and then use the same disk (I realize I'll have to reformat
|> it) on the wonderful PC laptop system I plan on buying in a few years.

Ummm, one little detail. Most laptops don't have SCSI. They use IDE.

|> If I can't do this, I won't buy the drive, because it's not worth that
|> much money to upgrade my mac, unless I can get more use out of the
|> disk later. Essentially my mac is on its last legs as far as
|> usefullnes goes, but I don't have enough money to buy a new computer
|> yet (since when I do buy, I want it to be a real good one). 
|> 
|> OK, that's all a little confused. To summarize: if I buy a scsi disk
|> for my mac, will I later be able to use it on a PC? If so, what do I
|> need to get with the disk to accomplish this?

In a word.... Yes. a SCSI disk is usuable on many platforms, including but 
not limited to...

Silicon Graphics, Sun, IBM PS/2 (with SCSI), Apple, Commodore Amiga,
IBM PC (with SCSI adaptor), IBM RS/6000, Atari ST, etc..., etc...

Providing there is a SCSI controller available for it.
-- 
------------------------------------------------------------------------------
Scott C. Kennedy (sck@watson.ibm.com)  | This post does not reflect the intent 
Distributed High Performance Computing | or actions of my employer, and their 
IBM Thomas J. Watson Research Facility | actions don't reflect mine either.
------------------------------------------------------------------------------
I had this dream the other night. I went to work one day, and nobody 
remembered who I was. So, I decided to take the day off. - 2nu
Newsgroups: comp.periphs.scsi
From: sgil@netcom.com (Steve Gilbert)
Subject: SONY SDT-1000 DAT Drive
Organization: Netcom - Online Communication Services  (408 241-9760 guest) 
Date: Wed, 30 Sep 1992 01:18:58 GMT

Does anyone have a phone number for Sony technical support?  I recently
purchased a SDT-1000 drive which the advertizing copy claimed could
store 2000Mb;  the documentation that came with the drive says 1300Mb;
the truth is more like 1100Mb.  Looking at the "full" tapes it appears
that there's a substantial portion on a 90m DAT that's not being used,
but I'd like to find out what Sony have to say before I complain to
the company I bought the drive from.  Unfortunately the tech sheet
doesn't have Sony's phone number...

Thanks.
--
Steve Gilbert				(sgil@netcom.com)
Newsgroups: comp.periphs.scsi
From: bwilliam@iat.holonet.net (Bill Williams)
Subject: Re: SCSI bad sectors?
Organization: HoloNet (BBS: 510-704-1058)
Date: Wed, 30 Sep 1992 06:28:46 GMT

I do not have the Seagate 4702N manual around me but beware of some lying
jerks that abuse the phrase Megabyte to mean 10^6 th power bytes instead of
the computer science meaning of 2^10 th power Kilobytes . Only *ONE* company I
have ever ever heard of tries to use the printed word "Megabyte" to meand the
smaller evil 10^6th meaning and that company is QUANTUM. To be fair, the
word "Megabyte" when written in tech manuals by QUANTUM is usually always
preceded by the word "Quantum" as in "200 Quantum Megabytes" with "Quantum
Megabytes" being explicitly defined as 10^6.

Imprimis/Seagate, Maxtor, Conner, Fujitsu, HP, DEC, MOST, IOmega, INSITE
etc all universally use the printed word Megabyte to mean 2^10 Kilobytes
though advertisement oriented spec sheets play games with the Symbol "MB"
which can mean Megabits Megabytes 10^6 or 2^10....

"MB" means *NOTHING* because of abuse. Get printed specs that use the word
"Megabyte" only. If you can find such a document, then your next step is
to connect the formatted device to a specialized program that will report
the current number of available blocks on the disk (remember that such
programs might report the last addressable block, and since SCSI is 0
based add 1 block to the total blocks available.

DOS 5 might have to remap in a bad manner.

I do not believe the SCSI docs intended to lie and ever count the
remapping areas (very large on optical disks) as valid blocks in the
Megabyte calculation)

Also..... Many greedy marketing pigs round up the megabytes to the next
higher number and never routnd down like they should (they are MBAs and
not technically trained)

AND SOME crappy companies round up incorrectly, such as 119.1 Megabytes
being referred loosely as a 120 Megabyte device.

Bill Williams

From: stevej@hpcpbla.bri.hp.com (Steve Jerman)
Date: Fri, 25 Sep 1992 15:35:32 GMT
Subject: Re: Ordinary DAT vs. "data grade" DAT
Organization: HP Computer Peripherals Bristol, UK
Newsgroups: comp.periphs.scsi

Hi,
  Notes the signature...

  If you want a (normally) cheaper source of DDS cassette look at
  buying them from HP Direct (HP Supplies Sales). You should find
  that they sell them for a good price (HP wants people to use
  DDS Media  - it keeps people happier in the long run).

Steve

------------------------------------------------------------------------------
Steve Jerman                                      phone:    +44 272 228424
Hewlett Packard                                   telnet:         312-8424
Computer Peripherals Bristol                      fax:      +44 272 236194
Filton Road                              
Bristol UK.                              email:  stevej@hpcpbla.bri.hp.com
BS12 6QZ                                 HPDesk:     Steve Jerman / HPC600
------------------------------------------------------------------------------
This response does not represent the official position of, or statement by,
the Hewlett-Packard Company.  The above data is provided for informational
purposes only.  It is supplied without warranty of any kind.
Newsgroups: comp.periphs.scsi
Subject: Always controller opinions?
From: jones@atmo1.atmo.arizona.edu
Date: 6 Oct 92 20:23:08 MST
Distribution: usa,local
Organization: University of Arizona, Atmospheric Sciences

Anybody have any opinions on Always SCSI/2 devices?
I'm shopping for something similar to the Adaptec 1542,
because I want to hang all kinds of devices on it, but
I'd be happy to save some money, if possible.
The last rumor I heard was that an aspi driver for OS/2 v2
was onon it's wa  Also, does anyone know their BBS number?

Thanks,

cgj
jones@atmo1.atmo.arizona.edu
Newsgroups: comp.periphs.scsi
From: sasbge@unx.sas.com (Gantt Edmiston)
Subject: Help needed on ZEOS/Adaptec 1520 clone
Date: Tue, 6 Oct 1992 04:27:57 GMT
Organization: SAS Institute Inc.
Keywords: ZEOS,Adaptec,1520

I am purchasing a new PC from ZEOs International and one of the
"features" is an onboard SCSI "chip" that supposedly emulates an
Adaptec 1520 SCSI controller board.  The chip is a $49 upgrade and
simply involves getting the chip from ZEOS and plugging it into the
socket on the mother board.

Since I'm real new to the PC world and Adaptec products, can somebody
clue me in on exactly what this chip may or may not do?  Is the 1520
a newer product?  Or is it a dead product that is now being resurrected
as a new product in another "body" =-).

Personally, $49 is cheap for a SCSI upgrade, but maybe I'm only getting
what I am paying for.  Opinions, comments, warnings and suggestions
can be emailed to me or reposted to this group.  Thanks, Gantt
--
-----------------------------------------------------------------------------
Gantt Edmiston - SysAdmin     o |If you always do what you have always done, 
SAS Institute Inc.          <(  |you'll always get what you've always gotten!
Quality Assurance - V416     [\.+--------------------------------------------
Cary NC 27513 919-677-8000 x6091|          sasbge@ant.unx.sas.com
-----------------------------------------------------------------------------
 I admit that back in my college days, I wrote FORTRAN; but I didn't compile!
-----------------------------------------------------------------------------
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