Rex is right.
Linux (Z or otherwise) is a different operating system. And it's "full
ASCII".
USS, also known as OMVS, has been an integral part of MVS (now known as
z/OS) since the mid 1990s.
IBM has put more and more function into USS, even moving things from the
"traditional" side.
USS is really an excellent piece of work, even though it does speak
EBCDIC. (Which, being Unix in every other way, really confuses newcomers.)
A growing number of people do in fact buy their first mainframe and run
Linux on it. They can go native (LPAR) or on top of z/VM. But that's not
USS (with or without VM).
Z hardware is phenomenal. There's nothing like it. From time to time, a
potential customer will recognize the value of that hardware, regardless
what software workload they anticipate.
Of course, if they want the data moving power of a diesel locomotive,
they should go with z/OS. But for lots of other workloads, they'll want
Linux. No problem!
Just ... watch out ... be wary of the folks who mislabel it "Linux for
z/OS". Even with more than 20 years of "Linux for Z", there are still
many people out there who cannot separate z/OS the operating system from
Z hardware.
-- R; <><
On 5/22/23 10:40, Pommier, Rex wrote:
Hi Bob,
Linux on Z and OMVS are 2 completely different animals. OMVS is an integral
part of z/OS (try running TCP/IP without it for example). zLinux is a
completely separate operating system, running in an LPAR or on top of VM just
like another OS image. Another difference is that OMVS (as part of z/OS) runs
EBCDIC where I believe zLinux is a full ASCII OS running on the z hardware.
Rex
From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of Bob
Bridges <robhbrid...@gmail.com>
Sent: Monday, May 22, 2023 9:48 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: Are Banks Breaking Up With Mainframes? | Forbes
Wait, did I misunderstand this? People buy their first mainframe and run Linux
on it?!
(Color me ignorant, but I've always thought of OMVS as a late add-on.)
---
Bob Bridges, robhbrid...@gmail.com, cell 336 382-7313
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