12 Feb
2004
12 Feb
'04
8:50 a.m.
Hi All,
Just a thought. Did anyone ever try to connect DVD drives,
or CDROM changers, to VAX-class machines, such as 3100's or
InfoServers?
I *would* assume InfoServer cant handle the DVD data format,
although newer VMS systems might. How do they deal with
multiple-LUN devices such as changers?
Cheers,
Fred
--
Fred N. van Kempen, DEC (Digital Equipment Corporation) Collector/Archivist
Visit the VAXlab Project at http://VAXlab.pdp11.nl/
Visit the Archives at http://www.pdp11.nl/
Email: waltje(a)pdp11.nl BUSSUM, THE NETHERLANDS / Mountain View, CA, USA
12 Feb
12 Feb
9:02 a.m.
Problem I've run into is that the older vax'es don't play well with many
non-Dec CD-ROM drives due to a firmware issue and I've had to go out and
hunt a real DEC cd-rom.... the Alpha's are far more flexible and play
well with more common parts.
Certain Toshiba cd-roms and vaxes get along nicely, I had an older NEC
multispin work on a Microvax II at one point if I recall.... DVD's
would only be viewed as cd-roms if you could get them to be accessible
at all.... if you've got a nice supply of drives to tinker with, its
worth doing some trial and error research.
Curt
Curt
Fred N. van Kempen wrote:
--
Curt Vendel & Karl Morris
-----------------------------------------------------------------------
The Atari Museum
http://www.atarimuseum.com
The Atari Explorer
http://www.atari-explorer.com
9:30 a.m.
On Thu, 12 Feb 2004, Curt Vendel wrote:
True, although I have had success with most of the
drives I ended
up with.
Yeah, I have about, hrrm, oh, 200 drives
splattered across the
place, so I can play. I *know* that most NEC, Toshiba and all
of the Plextor drives are OK. Most older CD-writers are, too.
I have a box of JVC DVD players, I will probably hook em up to
an 3100 and see what happens... likewise for the Nakamichi CD
changers.
(it will be fun to set up an 3100 with 2 SCSI channels as an
InfoServer, with 2 external towers loaded with Nakamichi CD
changers and a couple DVD drives... ;-)
--f
10:18 a.m.
I've never tried a non-DEC CDROM (never had to) but I do have
a Yamaha CDRW which no longer writes, so I may try it out
sometime. If it can be persuaded to do 512-byte blocks it
will work, if it can't, it probably won't. The other rule
of thumb is that if it works on Sun it probably works on
a VAX (and vice-versa).
I do not know if the InfoServer ESS code uses 10-bit SCSI commands
and hence has an issue with drives greater than 1GB. I assume
not because someone would have tried it by now and said so,
but ...
If you write your own DVDs and use ODS2
I doubt the infoserver would know the difference - just
serves blocks doesn't it? It might even serve data DVDs
even in UDF format. Streaming your latest movies might
be a stretch though!
Changes usually appear as sub-luns don't they? If so, then
I think the OpenVMS driver can cope (that is, IIRC, why the
naming convention is as it is - to allow for this very
possibility). Let us know whether ESS sees multiple
drives or not.
Antonio
--
---------------
Antonio Carlini arcarlini(a)iee.org
10:47 a.m.
When I first read this I thought you were quoting me from the other day, but
I think that was in a private mail :) I tried such a thing with a Yamaha
CDRW 4416S that no longer writes yesterday and it hung the bus - wouldn't
even self test :-/
Then I remembered I had an RRD43 kicking around so at least the install was
twice as quick....
Cheers
--
Adrian/Witchy
Owner & Webmaster, Binary Dinosaurs
www.binarydinosaurs.co.uk - possibly the UK's biggest online computer museum
www.snakebiteandblack.co.uk - ex-monthly gothic shenanigans :o(
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4 comments
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participants (4)
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arcarlini＠iee.org -
curt＠atarimuseum.com -
waltje＠pdp11.nl -
witchy＠binarydinosaurs.co.uk