Thread View: comp.sys.dec
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4 total messages
Started by Vladimir G. Tupitsin
Sat, 23 Mar 1996 23:02
DEC SDI disks on a PC?
Author: Vladimir G. Tupitsin
Date: Sat, 23 Mar 1996 23:02
Date: Sat, 23 Mar 1996 23:02
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Hi all! Does anybody know some way to connect SDI disks to a PC? We at Novosibirsk University have an old VAX-11/780 and are planning to get rid of it in the nearest future. But it has about 4GB of disks connected to it and we would be glad not to lose them. I have heard in some newsgroup about SMD-to-SCSI adapters. But we have SDI disks (RA90, RA81). Does such thing as SDI-to-SCSI adapter exist? Or maybe there is some other way to attach VAX SDI disks to a PC? Best wishes, Tupisin Vladimir, Novosibirsk State University. ---------------------------------------------------------------- General Protection Fault(tm) is a trademark of Microsoft Corp. Any use of General Protection Fault(tm) outside of Microsoft products is strictly prohibited by US and international laws. ----------------------------------------------------------------
Re: DEC SDI disks on a PC?
Author: Dave Green
Date: Tue, 26 Mar 1996 04:43
Date: Tue, 26 Mar 1996 04:43
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tvg@ccphys.nsu.ru (Vladimir G. Tupitsin) wrote:
> Hi all!
>
> Does anybody know some way to connect SDI disks to a PC?
I don't think you can do it. The DEC SDI protocol is a proprietary serial
communication scheme.
>
> We at Novosibirsk University have an old VAX-11/780 and are planning to
>get rid of it in the nearest future. But it has about 4GB of disks connected to it
>and we would be glad not to lose them. I have heard in some newsgroup about
>SMD-to-SCSI adapters. But we have SDI disks (RA90, RA81).
The cost of the electricity to run these drives for a year would probably cover the
price of some new IDE or SCSI disks !
>
> Does such thing as SDI-to-SCSI adapter exist? Or maybe there is some
>other way to attach VAX SDI disks to a PC?
There are (were) SDI-SCSI adapters, but they were designed to let you run SCSI disks
on an SDI interface, not the other way around. It may be possible, but I doubt it.
Dave
Ex Dec Tech
--
_ _
/ /_) / / / / / Dave Green <dave@bcl.co.nz>
/ /_) / /_ / /_ / Ph: +64 (4) 801-6716 Fax: +64 (4) 385-2752
Business Computers Ltd, Box 3236, Wellington 6000, NEW ZEALAND.
You're Invited To Check Our WebPage at http://www.bcl.co.nz/
Re: DEC SDI disks on a PC?
Author: Ralf-Peter Rohbeck
Date: Thu, 28 Mar 1996 20:41
Date: Thu, 28 Mar 1996 20:41
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Vladimir G. Tupitsin wrote: > Does such thing as SDI-to-SCSI adapter exist? Or maybe there is some > other way to attach VAX SDI disks to a PC? I'd run some network server software on the VAX. You can still do quite a few nifty things with it. I keep a VS4000 just for fun (i.e. Web serving, network/background tasks etc.) Otherwise, 4 GB run at maybe $1000 these days. How much do you want to spend on the SDI adapter (e.g. an HSC with SCSI front end)? Give the drives to a museum. Just my $0.02, Ralf-Peter -- ======================================================================== Ralf-Peter Rohbeck rrohbeck@qntm.com Quantum GmbH-Application Engineering-Central Europe (+49) 69-950767-18 Berner Str. 28, 60437 Frankfurt, Germany fax (+49) 69-950767-91 #include "disclaimer.h" tech support hotline (+49) 69-950767-26
Re: DEC SDI disks on a PC?
Author: Jeff Jonas
Date: Fri, 29 Mar 1996 03:17
Date: Fri, 29 Mar 1996 03:17
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>Otherwise, 4 GB run at maybe $1000 these days. How much do you want to >spend on the SDI adapter (e.g. an HSC with SCSI front end)? Just a quick note: 4 Gig drives can be as low as US $400. -- Jeffrey Jonas jeffj@panix.com
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