Agreed. The full name is OSA-Express Integrated Console Controller and was
primarly meant to provide Console Support to IPL OSes. Overtime, its use has
evolved but the basic concept remains.
Regards
Parwez Hamid
________________________________
From: IBM Mainframe Discussion List <[email protected]> on
behalf of R.S. <[email protected]>
Sent: 20 July 2020 12:17
To: [email protected] <[email protected]>
Subject: Re: Multi-channel OSA-ICC routing and TCP port behavior
Excuse me, but IMHO OSA-ICC is just way to get rid off old equipment
like 3174L. It is NOT replacement, it is only for local (called
non-SNA) terminals, printers and ...CONSOLES. Consoles are the most
important. Of course 3172, 3274, and other controllers were not the goal.
IBM went looong way from 3174s to to ICC. There were 2074 (quite
expensive), VTAM consoles (not very usable for IPL), older SYSCON
(Operating System Messages on HMC) and the latest 3270-like SYSG aka
PCOMM-like icon in HMC. SYSG is AFAIK z/VM nomenclature.
BTW, Note, nomenclaure for "HMC-like" consoles:
1. Operating System Messages
z/VM: SYSC
z/OS: SYSCON
2. HMC Integrated 3270 console (is it proper name?)
z/VM: SYSG
z/OS: HMCS
I don't know about other OSes.
--
Radoslaw Skorupka
Lodz, Poland
W dniu 19.07.2020 o 15:17, Tony Thigpen pisze:
Christian,
I was dismayed too when I first discovered this limitation. The
OSA-C was originally intended to eliminate the local 3174
requirement. It was not really designed to replace the 3172-003,
which is what many are using it for today.
And, you also need to look back at the OSA-C's roots which was the
3274 emulation in the P370, P390 and the MP3000.
Tony Thigpen
Christian Svensson wrote on 7/19/20 8:40 AM:
Thanks for the input folks.
Brian: I have it working just fine, the setup was easy as you said
- the reason I started this thread was because I couldn't
understand why the limitations on the TCP port number and the
philosophy behind the routing.
It seems pretty weird to me that IBM implemented ICC this way, but
hey - I'm just a stranger on the internet :-)
Regards,
On Sun, Jul 19, 2020, 06:52 Brian Westerman
<[email protected]>
wrote:
You can set up some of the ports to be local VTAM terminals, then
you can use VISTA (or any 3270 emulator) to connect into the ICC
port 3270, and use the LUNAME of the 3270 you defined as a local
3270 terminal. Since you can have over 100 terminals per port,
making them all os consoles is a waste, so having a bunch of them
as local 3270's that you can give to your carious LPARs (and use
EE to connect to the LPARs they are not connected to), is a great
way to use them.
I like to make the first 16 to 32 devices OS consoles and the
rest of them local 3270s.
So you are using TCP to get to them inside the ICC, but they are
technically local 3270 terminals. I think you can make some of
them printers if you want, but that seems like a waste.
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