Bob Armstrong wrote:
Is anyone running OVMS 8.3 using the AlphaServer ES40 emulator
(www.es40.org)? Does it really work and is it fairly reliable?
I'm looking for an Alpha emulator that runs under Linux. Simh doesn't do
it (no Alpha emulation) and Charon-AXP doesn't, AFAIK, run on a Linux host.
Are there any other Alpha emulators out there?
I'm using CHARON-AXP/ES40 NCE (http://www.stromasys.ch/downloads/alpha-virtualization/charon-axp-nce) for ES40 emulation.
It works fine, but requires Linux/amd64 and at least 2xCPU (or DualCore CPU) machine.
I tried to use emulator from www.es40.org, but it didn't even start :)
I've installed VMS onto it, and it was... "neat" but also SLOW AS HELL... Not to complain, it was a cool experience... I get the impression from the site though, that the project is dead which is a shame...
On Fri, Oct 30, 2009 at 2:37 PM, Bob Armstrong <bob at jfcl.com> wrote:
Is anyone running OVMS 8.3 using the AlphaServer ES40 emulator
(www.es40.org)? Does it really work and is it fairly reliable?
I'm looking for an Alpha emulator that runs under Linux. Simh doesn't do
it (no Alpha emulation) and Charon-AXP doesn't, AFAIK, run on a Linux host.
Are there any other Alpha emulators out there?
Not exactly a HECnet specific question, but there are lots of HECnet
people out there running emulation, so I figure you guys might know :-)
Thanks,
Bob
I'm looking for an Alpha emulator that runs under Linux.
There is CHARON-AXP NCE (Non-Commercial, Educational) that purportedly runs on x64 Linux. I tried it briefly, but wasn't able to finagle it to run properly with a blank disk to install OpenVMS onto it. I didn't try their preinstalled disk image.
You can find it at www.charon-axp.com, click on Downloads, then Alpha Virtualization on the left, and then CHARON-AXP NCE.
--Marc
Is anyone running OVMS 8.3 using the AlphaServer ES40 emulator
(www.es40.org)? Does it really work and is it fairly reliable?
I'm looking for an Alpha emulator that runs under Linux. Simh doesn't do
it (no Alpha emulation) and Charon-AXP doesn't, AFAIK, run on a Linux host.
Are there any other Alpha emulators out there?
Not exactly a HECnet specific question, but there are lots of HECnet
people out there running emulation, so I figure you guys might know :-)
Thanks,
Bob
Yes, I thought that too as it booted - I only plugged it in to see if it powers up, and the bloody thing fires up - even connected to CHIMPY from it..
On 28 Oct 2009, at 14:15, Fred wrote:
On Wed, 28 Oct 2009, Johnny Billquist wrote:
I have someone booting some DECserver 200 which was served by PONDUS:: (It's all in the logs...)
Only a couple of days ago.
For some reason that strikes me as "pretty neat". It all goes over the bridge and onto HECNet "somewhere" to find a host willing to do a load. :)
Fred
I should have said in the DEChub line.
-Steve
________________________________
From: owner-hecnet at Update.UU.SE on behalf of Paul Koning
Sent: Wed 10/28/2009 12:24
To: hecnet at Update.UU.SE
Subject: RE: [HECnet] DECrepeater 900TM
Actually, switches (bridges -- same thing, just a different marketing
name) came way earlier. The first bridges showed up fairly soon after
Ethernet first shipped. I think the first one was the Vitalink bridge,
which would run over a satellite link (fairly slowly). The first
full-speed bridge was the DECbridge-100 (two AUI ports) -- it
established the performance standard for bridges, full speed wire rate
min size packets all the time. I don't remember when that product came
out -- perhaps 1984, maybe even a year or two earlier.
paul
-----Original Message-----
From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On
Behalf Of jeep at scshome.net
Sent: Wednesday, October 28, 2009 11:57 AM
To: hecnet at Update.UU.SE
Subject: RE: [HECnet] DECrepeater 900TM
Like Paul said it is a hub not a switch. It was designed to be used
in
the DEChub-900 chassis or standalone. It just preceded the Alpha
family of systems so was targeted at VAXen (10base-T) based systems.
Switches came afterwards.
-Steve
_____
From: owner-hecnet at Update.UU.SE on behalf of Paul Koning
Sent: Wed 10/28/2009 11:31
To: hecnet at Update.UU.SE
Subject: RE: [HECnet] DECrepeater 900TM
I found a manual online:
http://www.carnagevisors.net/dec94mds/detmminb.pdf
It's a repeater (a.k.a., hub) not a switch (a.k.a., bridge). It's not
fancy at all. A repeater takes incoming Ethernet transmissions and
repeats them on all the other ports unconditionally. Also, a repeater
is by definition a half duplex device, so you have the CSMA/CD
(collisions and all that) of classic Ethernet. A bridge receives a
packet and transmits it on the appropriate output port (if any), and
can
be full duplex.
The 900TM is 10Base-T, so 10 Mb/s Ethernet -- not fast Ethernet
(100Base-T). Suitable for old slow Ethernet devices...
paul
-----Original Message-----
From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE]
On
Behalf Of Mark Wickens
Sent: Wednesday, October 28, 2009 11:22 AM
To: hecnet at Update.UU.SE
Subject: [HECnet] DECrepeater 900TM
Can someone explain to me what a decrepeater 900tm is? Is is a fancy
32
port 10MB switch?
Regards, Mark.
--
MOP running on VMS or NetBSD can serve any of the DECserver platforms. In some cases you need to associate the MAC address of a DECserver with an image on the load host, and in other cases the DECserver will request of the load host the image by file name. I suspect that Linux may be able to do the same as NetBSD. It is always better to have multiple load hosts available on such a (potentially) large network.
DEC in the Spitbrook Road Facility (ZKO) would run many load hosts per floor. Most system managers welcomed this so that MOP loading became distributed. We would use VAXen and InfoServers to support this. It just plain worked. I preferred the InfoServers myself because they were so much faster and Field Service would hand you a CD with diagnostics for the various families of VAXen that could all be loaded over the network. If you have ever tried to load DEC diags via TK50 you would understand the value of this.
-Steve
________________________________
From: owner-hecnet at Update.UU.SE on behalf of Johnny Billquist
Sent: Wed 10/28/2009 10:34
To: hecnet at Update.UU.SE
Subject: Re: [HECnet] RHESUS is (finally) up again
Mark Wickens wrote:
On Wed, 2009-10-28 at 10:15 -0400, Fred wrote:
On Wed, 28 Oct 2009, Johnny Billquist wrote:
I have someone booting some DECserver 200 which was served by PONDUS:: (It's
all in the logs...)
Only a couple of days ago.
For some reason that strikes me as "pretty neat". It all goes over the
bridge and onto HECNet "somewhere" to find a host willing to do a load. :)
Fred
That's exactly what I was thinking... might save me having to dig out my
decserver software firmware sometime...
PONDUS can serve the firmware for DECserver 100, DECserver 200 and
DECserver 300. That's all the firmware I have, and I also suspect that I
cannot get RSX to feed MOP images for other models, because RSX wants to
be picky about some stuff I think it should properly ignore.
Johnny
Actually, switches (bridges -- same thing, just a different marketing
name) came way earlier. The first bridges showed up fairly soon after
Ethernet first shipped. I think the first one was the Vitalink bridge,
which would run over a satellite link (fairly slowly). The first
full-speed bridge was the DECbridge-100 (two AUI ports) -- it
established the performance standard for bridges, full speed wire rate
min size packets all the time. I don't remember when that product came
out -- perhaps 1984, maybe even a year or two earlier.
paul
-----Original Message-----
From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On
Behalf Of jeep at scshome.net
Sent: Wednesday, October 28, 2009 11:57 AM
To: hecnet at Update.UU.SE
Subject: RE: [HECnet] DECrepeater 900TM
Like Paul said it is a hub not a switch. It was designed to be used
in
the DEChub-900 chassis or standalone. It just preceded the Alpha
family of systems so was targeted at VAXen (10base-T) based systems.
Switches came afterwards.
-Steve
_____
From: owner-hecnet at Update.UU.SE on behalf of Paul Koning
Sent: Wed 10/28/2009 11:31
To: hecnet at Update.UU.SE
Subject: RE: [HECnet] DECrepeater 900TM
I found a manual online:
http://www.carnagevisors.net/dec94mds/detmminb.pdf
It's a repeater (a.k.a., hub) not a switch (a.k.a., bridge). It's not
fancy at all. A repeater takes incoming Ethernet transmissions and
repeats them on all the other ports unconditionally. Also, a repeater
is by definition a half duplex device, so you have the CSMA/CD
(collisions and all that) of classic Ethernet. A bridge receives a
packet and transmits it on the appropriate output port (if any), and
can
be full duplex.
The 900TM is 10Base-T, so 10 Mb/s Ethernet -- not fast Ethernet
(100Base-T). Suitable for old slow Ethernet devices...
paul
-----Original Message-----
From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE]
On
Behalf Of Mark Wickens
Sent: Wednesday, October 28, 2009 11:22 AM
To: hecnet at Update.UU.SE
Subject: [HECnet] DECrepeater 900TM
Can someone explain to me what a decrepeater 900tm is? Is is a fancy
32
port 10MB switch?
Regards, Mark.
--
Like Paul said it is a hub not a switch. It was designed to be used in the DEChub-900 chassis or standalone. It just preceded the Alpha family of systems so was targeted at VAXen (10base-T) based systems. Switches came afterwards.
-Steve
________________________________
From: owner-hecnet at Update.UU.SE on behalf of Paul Koning
Sent: Wed 10/28/2009 11:31
To: hecnet at Update.UU.SE
Subject: RE: [HECnet] DECrepeater 900TM
I found a manual online:
http://www.carnagevisors.net/dec94mds/detmminb.pdf
It's a repeater (a.k.a., hub) not a switch (a.k.a., bridge). It's not
fancy at all. A repeater takes incoming Ethernet transmissions and
repeats them on all the other ports unconditionally. Also, a repeater
is by definition a half duplex device, so you have the CSMA/CD
(collisions and all that) of classic Ethernet. A bridge receives a
packet and transmits it on the appropriate output port (if any), and can
be full duplex.
The 900TM is 10Base-T, so 10 Mb/s Ethernet -- not fast Ethernet
(100Base-T). Suitable for old slow Ethernet devices...
paul
-----Original Message-----
From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On
Behalf Of Mark Wickens
Sent: Wednesday, October 28, 2009 11:22 AM
To: hecnet at Update.UU.SE
Subject: [HECnet] DECrepeater 900TM
Can someone explain to me what a decrepeater 900tm is? Is is a fancy
32
port 10MB switch?
Regards, Mark.
--
I found a manual online:
http://www.carnagevisors.net/dec94mds/detmminb.pdf
It's a repeater (a.k.a., hub) not a switch (a.k.a., bridge). It's not
fancy at all. A repeater takes incoming Ethernet transmissions and
repeats them on all the other ports unconditionally. Also, a repeater
is by definition a half duplex device, so you have the CSMA/CD
(collisions and all that) of classic Ethernet. A bridge receives a
packet and transmits it on the appropriate output port (if any), and can
be full duplex.
The 900TM is 10Base-T, so 10 Mb/s Ethernet -- not fast Ethernet
(100Base-T). Suitable for old slow Ethernet devices...
paul
-----Original Message-----
From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On
Behalf Of Mark Wickens
Sent: Wednesday, October 28, 2009 11:22 AM
To: hecnet at Update.UU.SE
Subject: [HECnet] DECrepeater 900TM
Can someone explain to me what a decrepeater 900tm is? Is is a fancy
32
port 10MB switch?
Regards, Mark.
--
