20 Sep
2004
20 Sep
'04
9:08 p.m.
Two 3420 drives and 3803 controller, in Maine USA.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=74946&item=5…
--Bill
20 Sep
20 Sep
10:55 p.m.
William Maddox wrote:
Two 3420 drives and 3803 controller, in Maine USA.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=74946&item=5…
d=1
Umm, very tempting :-)
But I suppose it would be impossible to connect it to any other sort of
non-ibm tape controller... (a 360 just isn't in my budget :-)
-brad
21 Sep
21 Sep
1:11 a.m.
>>>> "Brad" == Brad Parker
<brad(a)heeltoe.com> writes:
Brad> William Maddox wrote:
> Two 3420 drives and 3803 controller, in Maine
USA.
>
>
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=74946&item=5…
> d=1
Brad> Umm, very tempting :-)
Brad> But I suppose it would be impossible to connect it to any other
Brad> sort of non-ibm tape controller... (a 360 just isn't in my
Brad> budget :-)
With the controller included, it would presumably hook up to anything
that knows an IBM channel interface. So if you have a DX11 you could
hook it up to your Unibus PDP11; it should hook up to the older PDP10s
(DX10? I don't remember that designation but presumably there was
one).
paul
1:32 a.m.
At 09:11 AM 9/21/2004, you wrote:
Here's a SCSI adapter -- at least a picture of one. :-)
http://www.wpoint.co.uk/pdfs/i-1090-e.pdf
Ed K.
> Two 3420
drives and 3803 controller, in Maine USA.
>
>
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=74946&item=5…
> d=1
Brad> Umm, very tempting :-)
Brad> But I suppose it would be impossible to connect it to any other
Brad> sort of non-ibm tape controller... (a 360 just isn't in my
Brad> budget :-)
With the controller included, it would presumably hook up to anything
that knows an IBM channel interface. So if you have a DX11 you could
hook it up to your Unibus PDP11; it should hook up to the older PDP10s
(DX10? I don't remember that designation but presumably there was
one).
1:53 a.m.
>>>> "Brad" == Brad Parker
<brad(a)heeltoe.com> writes:
Brad> Paul Koning wrote:
> With the controller included, it would presumably
hook up to
> anything that knows an IBM channel interface. So if you have a
> DX11 you could hook it up to your Unibus PDP11;
Brad> wow - bus & tag? I've never seen a dx11. I assume VMS had
Brad> support for that.
No VMS support that I know of. The DX11 was a rather uncommon beast.
I believe it was a 6 foot rack full of little M series modules (and
perhaps even older modules). Built by the CSS group, I believe. When
I heard of it, it was definitely used with a PDP11 at one end, not a
VAX. One of my co-workers in the RSTS group used to support that
beast; he had a box or two of IBM-side diagnostics card decks in his
office. I guess the primary application was as a PDP11 to IBM/360
interconnect, so the PDP11 could act as an IBM front end or something
along those lines.
paul
12:53 p.m.
Paul Koning wrote:
Yes, bus and tag. Be warnded that the DX11 is 8 rows of flip-chip cards
in a 12U high backplane + a PSU + a power interlock panel + a lights
panel + a connecotr panel. In other words it takes up half a 6' rack at
least (I have 2 of them, and the prints).
I also believe it's a 'slave' device only. It'll sit on the IBM channel
With the controller included, it would presumably hook up to anything
that knows an IBM channel interface. So if you have a DX11 you could
hook it up to your Unibus PDP11;
wow - bus & tag? I've never seen a dx11. I assume VMS had support for
that from your system/360 (or with a few mods a system/370),
but I don't think
you can use it to link up IBM peripherals to a PDP11.
No idea what OSes supported it, but I've never heard of one on a VAX.
-tony
22 Sep
22 Sep
1:25 a.m.
>>>> "Tony" == Tony Duell
<ard(a)p850ug1.demon.co.uk> writes:
>
>
> Paul Koning wrote:
> >
> >With the controller included, it would presumably hook up to
> anything >that knows an IBM channel interface. So if you have a
> DX11 you could >hook it up to your Unibus PDP11;
>
> wow - bus & tag? I've never seen a dx11. I assume VMS had
> support for that
Tony> Yes, bus and tag. Be warnded that the DX11 is 8 rows
of
Tony> flip-chip cards in a 12U high backplane + a PSU + a power
Tony> interlock panel + a lights panel + a connecotr panel. In other
Tony> words it takes up half a 6' rack at least (I have 2 of them,
Tony> and the prints).
Tony> I also believe it's a 'slave' device only. It'll sit on the IBM
Tony> channel from your system/360 (or with a few mods a system/370),
Tony> but I don't think you can use it to link up IBM peripherals to
Tony> a PDP11.
Tony> No idea what OSes supported it, but I've never heard of one on
Tony> a VAX.
Then again, strange things sometimes happened... consider the DECtape
(real DECtape, not TU58) support that magically appeared in VMS at
some point. It even supported overlapped seek, just like TOPS-10.
paul
21 Sep
21 Sep
2:21 p.m.
Two 3420 drives and 3803 controller, in Maine USA.
It seems that the last of the 1/2 inch tapes are finally coming out of
service in the mainframe shops. I have been noticing less and less of the
3420s in the scrapyards, and pretty soon, they will be gone. One things I
regret never acting on is a 3380/3880 DASD (that is hard disk in Big Blue)
system - they were very abundant in the scrap yards five years ago, but
now are basically not to be found.
I am happy that my 3420 setup popped up in Manhattan not far from me. The
whole deal worked out pretty well - they keep wanting me to come back and
take stuff, for free!
William Donzelli
aw288(a)osfn.org
2:37 p.m.
On Tuesday 21 September 2004 22:21, William Donzelli wrote:
My former shop is scheduled to retire a bunch of 3390's at the end of this
year. But they said that last year too and the conversion hasn't been
going too well.
Two 3420
drives and 3803 controller, in Maine USA.
It seems that the last of the 1/2 inch tapes are finally coming out of
service in the mainframe shops. I have been noticing less and less of
the 3420s in the scrapyards, and pretty soon, they will be gone. One
things I regret never acting on is a 3380/3880 DASD (that is hard disk
in Big Blue) system - they were very abundant in the scrap yards five
years ago, but now are basically not to be found. I am happy that my 3420 setup popped up in Manhattan
not far from me.
The whole deal worked out pretty well - they keep wanting me to come
back and take stuff, for free!
William Donzelli
aw288(a)osfn.org
--
Collector of vintage computers http://www.ncf.ca/~ba600
Looking for: PICMG backplane
Open Source Weekend http://www.osw.ca
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ard＠p850ug1.demon.co.uk -
aw288＠osfn.org -
brad＠heeltoe.com -
kenziem＠sympatico.ca -
pkoning＠equallogic.com -
Pres＠macro-inc.com -
wmaddox＠pacbell.net