You can get brilliant performance on x86 but mainframe class
availability is another matter! Don't know if I would want my ATM to be
running on a blade just yet!
On 2020-05-02 12:10 AM, scott Ford wrote:
David,
Yep that’s what I heard about lzLabs , I have former Swiss colleague who
mentioned them to me. He was a diehard MVSer and thought they were pretty
impressive.
Scott
On Fri, May 1, 2020 at 7:00 AM David Crayford <dcrayf...@gmail.com> wrote:
I used to work with the guy that was the tech lead for the LzLabs CICS
project. He tried to recruit some of us!
IIRC, they got it churning out pretty impressive transactions per/sec.
Don't know about reliability.
On 2020-05-01 1:03 AM, Steve Beaver wrote:
The only thing I can't figure out how Lz did it was emulation of a
CICSPLEX,
and zDB2, and zIMS
None of those are simple. Plus mainframes have massive thru-put
capability
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On
Behalf Of Phil Smith III
Sent: Thursday, April 30, 2020 8:56 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: LzLabs
Peter Baumann wrote, in part:
Emulating the entire ecosystem and all the third-party tools seems like
insane. They call it re-hosting. IMHO you can re-host something written
to open standards. Otherwise you have to deal with legal issues and
since it's all propritary and patented they must have reverse
engineered entire zOS. Can you do it without infringing on patents ?
And even if you can, how many man years would you need ? Harsh reality
these days is funding is becoming scarce.
LzLabs was very careful to avoid any infringement: folks working on their
stuff had to sanitize their bookshelves, even. Doesn't guarantee
anything,
but they've been at it a while, certainly longer than PSI did their
thing,
and IBM hasn't sued, so that probably tells us something.
As Steve notes, this is hardly John Moores' first rodeo: he won't have
gone
into this guessing/assuming he could just do it and get away with it.
Like any rehosting, the point here is to capture the value of the
existing
business logic. That's huge and is why LzLabs and other such approaches
(*cough* Micro Focus Enterprise Server *cough*) exist and are successful.
So while it's certainly unarguable that LzLabs' play is very ambitious,
I'd
not dismiss it as silly (not saying you were, but I've heard others do
so).
To the modern CIO who sees the mainframe as legacy, this kind of thing is
extremely appealing.
Let's not bother to go into why that may or may not be a valid
perspective:
the real point is that folks at least think they want this; all it has
to do
is work well enough. "Good enough is good enough" for most people.
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