| Author |
Message |
Bruce Patis
Guest
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 Posted:
Thu Sep 30, 2004 12:35 pm Post subject:
Computer to computer file transfer via SCSI cable |
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I often have to transfer large amounts of data between two computers.
Both computers have a CD-recorder, and I also have a good external
parallel port (ECP) hard drive. However, for speed and convenience,
it would be better not to have to write, then read, an intermediate
storage device like those.
Sending data through serial or parallel cables works fine, but is of
course very slow. I don't have USB because the OS's I prefer to use
do not support it. OTOH, both computers have a SCSI card which works
fine, so that's what I use for most external devices like scanners,
which produce large data files.
I've been trying to find software that can send data over the SCSI bus
from one computer to another. The source would be a hard drive on one
computer and the destination would be a hard drive on the other
computer. There are two hard drives in each computer, but both are
IDE. I use DOS most of the time, but I run Windows NT4/Sp6 when I
need to use an application which requires Windows, or have to access a
Web site which is browser- and/or OS-specific.
After searching the archives, I found several Mac programs which claim
to be able to do this, but none for any OS which will run on a PC.
I'd prefer a DOS program, but I'll settle for one that will run in
Windows NT4.
Bruce |
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Nico de Jong
Guest
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| Posted:
Thu Sep 30, 2004 2:19 pm Post subject:
Re: Computer to computer file transfer via SCSI cable |
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"Bruce Patis" <brucep1000@earthlink.net> skrev i en meddelelse
news:e3fnl0lcjm7jpak75suakbpvl3pgkkgi13@4ax.com...
| Quote: | I often have to transfer large amounts of data between two computers.
Both computers have a CD-recorder, and I also have a good external
parallel port (ECP) hard drive. However, for speed and convenience,
it would be better not to have to write, then read, an intermediate
storage device like those.
|
I have had similar problems, but I found a better (I think) way. All my
systems have a 3.5" disk in a "drawer". The "drawer" dan then be taken out
and moved to any system. This gives the benefit of a full-speed copying,
without any problems. And it can also be done in DOS.
Nico
---
Outgoing mail is certified Virus Free.
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Eric Gisin
Guest
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| Posted:
Thu Sep 30, 2004 6:06 pm Post subject:
Re: Computer to computer file transfer via SCSI cable |
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What's wrong with fast ethernet? You won't find target-mode SCSI drivers for
your OS.
"Bruce Patis" <brucep1000@earthlink.net> wrote in message
news:e3fnl0lcjm7jpak75suakbpvl3pgkkgi13@4ax.com...
| Quote: | I often have to transfer large amounts of data between two computers.
Both computers have a CD-recorder, and I also have a good external
parallel port (ECP) hard drive. However, for speed and convenience,
it would be better not to have to write, then read, an intermediate
storage device like those.
I've been trying to find software that can send data over the SCSI bus
from one computer to another. The source would be a hard drive on one
computer and the destination would be a hard drive on the other
computer. There are two hard drives in each computer, but both are
IDE. I use DOS most of the time, but I run Windows NT4/Sp6 when I
need to use an application which requires Windows, or have to access a
Web site which is browser- and/or OS-specific.
|
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| Back to top |
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Bruce Patis
Guest
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| Posted:
Sat Oct 02, 2004 1:33 pm Post subject:
Re: Computer to computer file transfer via SCSI cable |
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On Thu, 30 Sep 2004 08:35:30 GMT, Bruce Patis
<brucep1000@earthlink.net> wrote:
| Quote: | I often have to transfer large amounts of data between two computers.
Both computers have a CD-recorder, and I also have a good external
parallel port (ECP) hard drive. However, for speed and convenience,
it would be better not to have to write, then read, an intermediate
storage device like those.
OTOH, both computers have a SCSI card which works
fine, so that's what I use for most external devices like scanners,
which produce large data files.
I've been trying to find software that can send data over the SCSI bus
from one computer to another. The source would be a hard drive on one
computer and the destination would be a hard drive on the other
computer. There are two hard drives in each computer, but both are
IDE. I use DOS most of the time, but I run Windows NT4/Sp6 when I
need to use an application which requires Windows, or have to access a
Web site which is browser- and/or OS-specific.
Bruce
|
On Thu, 30 Sep 2004 12:19:45 +0200, "Nico de Jong"
<nico@SPAMBLOCKfarumdata.dk> wrote:
| Quote: | I have had similar problems, but I found a better (I think) way. All my
systems have a 3.5" disk in a "drawer". The "drawer" dan then be taken out
and moved to any system. This gives the benefit of a full-speed copying,
without any problems. And it can also be done in DOS.
Nico
|
On Thu, 30 Sep 2004 07:06:29 -0700, "Eric Gisin"
<ericgisin@graffiti.net> wrote:
| Quote: | What's wrong with fast ethernet? You won't find target-mode SCSI drivers for
your OS.
|
Thanks for the suggestions. Both are good ideas if I still can't find
a SCSI solution after searching a little more.
The main reason is that I have a very reliable SCSI card in each
computer, the ASPI drivers for all OS's, and a high-qualility, long
SCSI cable. For the alternatives, I'd have to purchase two ethernet
cards, a cable, and software; or an additional HD, a drawer, and two
frames.
BTW, the "HD in a drawer" reminded me of a test I did recently, using
the long external cable connected between the two host adapters. I
was able to operate any SCSI device on one computer with the software
in that computer, or in the other computer. For example, I could burn
files to a CD from a HD in the same computer, then read that CD from
the other computer without even removing the disc. If I had a SCSI
HD, I could leave it permanently installed in either computer and
transfer files using that same method.
Does anyone know the best place to buy an inexpensive SCSI hard drive,
5-10GB. Even one of the slower models would probably be fast enough.
Bruce |
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Brian {Hamilton Kelly}
Guest
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| Posted:
Sun Oct 03, 2004 3:59 pm Post subject:
Re: Computer to computer file transfer via SCSI cable |
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On Saturday, in article
<mbqsl0ta092rjv15lgtdfj8u1h5d8qgdn3@4ax.com>
brucep1000@earthlink.net "Bruce Patis" wrote:
| Quote: | BTW, the "HD in a drawer" reminded me of a test I did recently, using
the long external cable connected between the two host adapters. I
was able to operate any SCSI device on one computer with the software
in that computer, or in the other computer. For example, I could burn
files to a CD from a HD in the same computer, then read that CD from
the other computer without even removing the disc. If I had a SCSI
HD, I could leave it permanently installed in either computer and
transfer files using that same method.
|
This (and the previous postings to the thread) reminded me that
main-frame computers, and even superminis such as the DEC VAXen, often
used to have "dual-ported" disk drives (or farms of drives) where the
disks were accessible by either of two computers.
Was anything like this ever constructed with and/or for SCSI? ISTM that
there could be great advantages in such an approach, especially for
fault-tolerant systems.
| Quote: | Does anyone know the best place to buy an inexpensive SCSI hard drive,
5-10GB. Even one of the slower models would probably be fast enough.
|
I've got about four dozen 4.3GB Seagate Baracudas, with 68-pin
interfaces, if anyone wants to pay a few dollars plus shipping apiece.
--
Brian {Hamilton Kelly} bhk@dsl.co.uk
"I don't use Linux. I prefer to use an OS supported by a large multi-
national vendor, with a good office suite, excellent network/internet
software and decent hardware support." |
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Jeff Jonas
Guest
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| Posted:
Mon Nov 01, 2004 4:12 pm Post subject:
Re: Computer to computer file transfer via SCSI cable |
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| Quote: | This (and the previous postings to the thread) reminded me that
main-frame computers, and even superminis such as the DEC VAXen, often
used to have "dual-ported" disk drives (or farms of drives) where the
disks were accessible by either of two computers.
Was anything like this ever constructed with and/or for SCSI?
|
I believe so.
Concurrent Computer Corp used 8" dual ported SMD drives for development.
Only one machine used the drive at a time:
the "host" machine and the system-under-test,
else there's coherency problems.
Networks are really well suited for peer to peer transient information.
SCSI is mostly master-slave speak-when-spoken-to. |
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Scott Lurndal
Guest
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| Posted:
Mon Nov 01, 2004 9:58 pm Post subject:
Re: Computer to computer file transfer via SCSI cable |
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jeffj@panix.com (Jeff Jonas) writes:
| Quote: | This (and the previous postings to the thread) reminded me that
main-frame computers, and even superminis such as the DEC VAXen, often
used to have "dual-ported" disk drives (or farms of drives) where the
disks were accessible by either of two computers.
Was anything like this ever constructed with and/or for SCSI?
|
With the Burroughs Medium Systems mainframes, one could connect
16 drives to 8 hosts through a dual exchange box. Any 4 hosts
could share a single drive (e.g. shared files) when using a SSP
(shared systems processor - basically a hardware block lock) to
coordinate access to files and directories.
scott |
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jon_norstog
Guest
|
| Posted:
Tue Nov 02, 2004 3:05 am Post subject:
Re: Computer to computer file transfer via SCSI cable |
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Dear Jeff and list:
Two computers hooked together by SCSI: This is a pretty realistic
thing to do. FOr instance, go to
http://h18002.www1.hp.com/alphaserver/products/storage/kzpea/index.html
and then select the "users' guide".
This page is for the Compaq-branded version of the Adaptec 39160. One
of the confugurations it supports is sharing between two computers.
You do need to close the two termination jumpers on the card.
good luck
jn
jeffj@panix.com (Jeff Jonas) wrote in message news:<cm55mg$29u$1@panix5.panix.com>...
| Quote: | This (and the previous postings to the thread) reminded me that
main-frame computers, and even superminis such as the DEC VAXen, often
used to have "dual-ported" disk drives (or farms of drives) where the
disks were accessible by either of two computers.
Was anything like this ever constructed with and/or for SCSI?
I believe so.
Concurrent Computer Corp used 8" dual ported SMD drives for development.
Only one machine used the drive at a time:
the "host" machine and the system-under-test,
else there's coherency problems.
Networks are really well suited for peer to peer transient information.
SCSI is mostly master-slave speak-when-spoken-to. |
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