On 08/04/2012 09:00 PM, Jordi Guillaumes i Pons wrote:
There used to be a "mainframe in a card" thing... I think the name
was something like P/390. IIRC it was a MCA card with a 390 processor
which could be attached to a PS/2 personal computer.
There still are. ;) There are three types of P/390 cards. The first
is a card for the Microchannel bus, and it has a relatively slow S/390
architecture processor on it, along with 32MB of RAM, expandable to 64MB
or 128MB. The second P/390 has the same CPU, but is a PCI card, and it
comes standard with 128MB. The third is the P/390E, which has a much
faster CPU, and has 256MB of RAM. A 1GB version of this card exists but
is very rare.
All three of these cards can be run in a PeeCee with OS/2 as its host
OS, or in an RS/6000 running AIX. Software installed on the host
implement channel controller emulation as a set of daemons, and DASD is
emulated using container files on the drives of the host system. The
container files used by Hercules are, not so coincidentally, identical
in format.
These cards are referred to as "P/390" and "P/390E", and one of them
installed in a PC running OS/2 is called a "P/390", but when the same
card is installed in an RS/6000, it is referred to as an "R/390".
I have a Microchannel R/390 system in an "unsupported" but functional
and rather nice configuration, in an RS/6000 model 397 running AIX v4.3.
The P/390 card runs either MVS (specifically OS/390 v2r10) or VM/ESA
v2r4, whatever I'm in the mood for. I also have a P/390E card, but
haven't gotten around to building a host system for it yet. The
(slower) Microchannel version is actually respectably quick, quite
usable. The P/390E is noticeably faster (I've used someone else's) so
I'd like to get mine running at some point.
If anyone comes across these cards and needs the software and
microcode to get them running, either for OS/2 or AIX, I have them. I
can also help with getting them running; I've done a lot with them.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
SG1:: has returned. We have had several power failures today. The last
one took out the laptop "Console" on SG1::. That machine will be moving
to a UPS shortly.
-Steve
-----Original Message-----
From: owner-hecnet at Update.UU.SE
[mailto:owner-hecnet at Update.UU.SE] On Behalf Of Peter Coghlan
Sent: Saturday, August 04, 2012 16:01
To: hecnet at Update.UU.SE
Subject: [HECnet] Connectivity problems
In another thread, Jordi Guillaumes i Pons
<jg at jordi.guillaumes.name> wrote:
PS: I have lost connectivity to UPDATE again. And this time
rebooting
my router didn't fix it... Any other one in the same situation?
I cah't reach various parts of HECnet right now, including area 1.
It appears from here that SG1 might be down or unreachable
but I don't think that accounts for all that seems to be wrong.
Regards,
Peter Coghlan.
Jordi Guillaumes i Pons
Barcelona - Catalunya - Europa
El 04/08/2012, a les 23:19, Sampsa Laine <sampsa at mac.com> va escriure:
I just checked Amazon and they didn't have any z-series boxes for reasonable prices.
Also the power and cooling would kinda suck, methinks.
There used to be a "mainframe in a card" thing... I think the name was something like P/390. IIRC it was a MCA card with a 390 processor which could be attached to a PS/2 personal computer.
Sampsa
On 5 Aug 2012, at 00:18, Dave McGuire wrote:
On 08/04/2012 04:18 PM, Sampsa Laine wrote:
I just had an absolutely insane idea: I'm gonna run Debian S/390 and try to get the DECNET stack running on that.
What do you guys think?
I think it sounds like lots of fun. It'd be even MORE fun if you're
able to do it on real hardware.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
Jordi Guillaumes i Pons
Barcelona - Catalunya - Europa
El 04/08/2012, a les 23:03, "Bob Armstrong" <bob at jfcl.com> va escriure:
Go ahead. The Debian S/390 installer is almost a friendly penguin so you
should be okay.
The Debian S/390 port installation guide says
"Since Debian Squeeze, support for booting in ESA/390 mode was dropped.
Your machine needs to support for at least the z/Architecture, Architecture
Level Set 2."
I take this to mean that Debian no longer runs on a real S/390 machine but
requires a zSeries of some sort. Does that work with Hercules?
Yes, it does.
Bob
It is working fine now. Thanks.
Jordi Guillaumes i Pons
Barcelona - Catalunya - Europa
El 04/08/2012, a les 22:18, Johnny Billquist <bqt at softjar.se> va escriure:
On 2012-08-04 22:01, Peter Coghlan wrote:
In another thread, Jordi Guillaumes i Pons <jg at jordi.guillaumes.name> wrote:
PS: I have lost connectivity to UPDATE again. And this time rebooting my
router didn't fix it... Any other one in the same situation?
I cah't reach various parts of HECnet right now, including area 1.
It appears from here that SG1 might be down or unreachable but I don't think
that accounts for all that seems to be wrong.
Psilo, running the bridge at Update had restarted. Kicked the bridge. All should be ok now.
Johnny
And here we are:
Good times.
On 4 Aug 2012, at 23:32, Gregg Levine wrote:
On Sat, Aug 4, 2012 at 4:18 PM, Sampsa Laine <sampsa at mac.com> wrote:
I just had an absolutely insane idea: I'm gonna run Debian S/390 and try to get the DECNET stack running on that.
What do you guys think?
Sampsa
Hello!
Go ahead. The Debian S/390 installer is almost a friendly penguin so
you should be okay.
-----
Gregg C Levine gregg.drwho8 at gmail.com
"This signature fought the Time Wars, time and again."
On Sat, Aug 4, 2012 at 5:24 PM, Dave McGuire <mcguire at neurotica.com> wrote:
On 08/04/2012 05:19 PM, Sampsa Laine wrote:
I just checked Amazon and they didn't have any z-series boxes for reasonable prices.
Also the power and cooling would kinda suck, methinks.
A z890, for example, only pulls about 1.5kW. Not bad for a 64-bit
mainframe with big hairy balls.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
Hello!
Correct. That is what I had heard a while back.
--
-----
Gregg C Levine gregg.drwho8 at gmail.com
"This signature fought the Time Wars, time and again."
That would kinda rock..
Sampsa
On 5 Aug 2012, at 00:24, Dave McGuire wrote:
On 08/04/2012 05:19 PM, Sampsa Laine wrote:
I just checked Amazon and they didn't have any z-series boxes for reasonable prices.
Also the power and cooling would kinda suck, methinks.
A z890, for example, only pulls about 1.5kW. Not bad for a 64-bit
mainframe with big hairy balls.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
On 08/04/2012 05:19 PM, Sampsa Laine wrote:
I just checked Amazon and they didn't have any z-series boxes for reasonable prices.
Also the power and cooling would kinda suck, methinks.
A z890, for example, only pulls about 1.5kW. Not bad for a 64-bit
mainframe with big hairy balls.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
On Sat, Aug 4, 2012 at 5:19 PM, Sampsa Laine <sampsa at mac.com> wrote:
I just checked Amazon and they didn't have any z-series boxes for reasonable prices.
Also the power and cooling would kinda suck, methinks.
Sampsa
On 5 Aug 2012, at 00:18, Dave McGuire wrote:
On 08/04/2012 04:18 PM, Sampsa Laine wrote:
I just had an absolutely insane idea: I'm gonna run Debian S/390 and try to get the DECNET stack running on that.
What do you guys think?
I think it sounds like lots of fun. It'd be even MORE fun if you're
able to do it on real hardware.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
Hello!
Given time Amazon will be (trying to) sell everything. Now start
looking for managed and not managed networking gear and you'll see
the amazing roadblocks I need to surmount from time to time.
Someone in there is selling a pair of HP gadgets that I might buy RSN.
Or will if when I'm ready he's still got them.
-----
Gregg C Levine gregg.drwho8 at gmail.com
"This signature fought the Time Wars, time and again."
