Re: Banks migrate from mainframes to AI-driven cloud

2024-02-10 Thread Tom Brennan

LOL!

On 2/10/2024 4:30 PM, Lennie Dymoke-Bradshaw wrote:

" I have not seen a RISC system in 30 years"
" Sent from my iPhone"

What irony.
Lennie


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Re: Banks migrate from mainframes to AI-driven cloud tech

2024-02-10 Thread Paul Gilmartin
On Sat, 10 Feb 2024 19:56:06 -0500, Phil Smith III wrote:
>   ... about IBM zSystems than other platforms these days either, alas.
>
This discussion is driven by a mixture of technical expertise and sentiment.

-- 
gil

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Re: [EXTERNAL] Re: Reading a scratch tape

2024-02-10 Thread Seymour J Metz
I would assume that it's difficult or impossible with PDSE, but that there is 
less need in PDSE2, due to generations.

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Shmuel (Seymour J.) Metz
http://mason.gmu.edu/~smetz3
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From: IBM Mainframe Discussion List  on behalf of 
Paul Gilmartin <042bfe9c879d-dmarc-requ...@listserv.ua.edu>
Sent: Friday, February 9, 2024 6:46 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: [EXTERNAL] Re: Reading a scratch tape

On Thu, 8 Feb 2024 22:41:03 +, Pommier, Rex wrote:
>
>Actually, it does make sense (at least to me) to have this threshold set.  
>We've gone back more than once to rescue a developer or support person who 
>inadvertently scratched a tape the day before and we were able to recover it 
>for them by using this "expired but not really" feature...>
>
I believe PDS86 has a similar ability to recover deleted PDS members.

Does this work for PDSE?  I suspect it's harder.  Is that used as an argument 
against
migrating from PDS to PDSE?

That's what generations are for.

--
gil

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Re: Banks migrate from mainframes to AI-driven cloud tech

2024-02-10 Thread Seymour J Metz
How do containers in the cloud differ from containers on the mainframe? How 
difficult is it to provision a new z/VM virtual machine with contemporary 
software? ow much is just different coverage in the in-flight magazines versus 
substantive benefits of the cloud?

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Shmuel (Seymour J.) Metz
http://mason.gmu.edu/~smetz3
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From: IBM Mainframe Discussion List  on behalf of 
Phil Smith III 
Sent: Saturday, February 10, 2024 7:54 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: Banks migrate from mainframes to AI-driven cloud tech

Bob Bridges wrote:
>"...where mainframes' resilience meets the agility of cloud computing."
>What is the "agility" of the cloud, exactly?

The ability to spin up more instances [of applications that are built that way, 
obviously] on demand/automatically. For certain very peaky workloads this is a 
huge win. Not that I'm in any way arguing that these are important applications 
in the real world, but things like Pinterest and Instagram at least started 
this way in AWS or GCP, still use the model (albeit presumably on their own 
cloud now): when something big happens and usage blows up, instead of just 
getting dog-slow or crashing, more instances get spun up and things hum along.

Yes, there are a ton of assumptions involved 
there-capacity/competence/security/etc. of the cloud provider. I'm very chary 
of public cloud for "real work" for this reason. But if you look at it at the 
right angle (perhaps squinting a lot!), you can see that-again, for the right 
workloads-it gets you out of the business of provisioning/capacity 
management/etc. Of course it also encourages inefficient code, but ?maybe? 
that's OK (again, in the right use cases).

One of the biggest problems, of course, is that folks don't understand the 
caveats, go in with both feet first, and get burned. All of the CSPs, for 
example, offer some sort of cryptographic service. None of them are BYOK (Bring 
Your Own Key)-in other words, you're trusting the service itself not to attack 
you or to get compromised and allow an attack. WCGW?

For software vendors, the attraction is that they don't have to build/manage as 
much of the platform as they do when they provide a fully functional server. 
All that really does is move that requirement from the vendor (once) to each 
customer, so it's a win for the vendor and a loss for the customer. That is, 
the customer has to do all the vulnerability scanning, patching, etc., instead 
of having the vendor do the heavy lifting (the wise customer does the scanning 
anyway, but then expects the vendor to provide the updates.) I keep waiting for 
the customer world to figure this out; hasn't happened yet AFAICT. Weird.


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Re: Banks migrate from mainframes to AI-driven cloud tech

2024-02-10 Thread Phil Smith III
Dave Beagle wrote:
>Large amounts of data, including AI, will require processing power
>(and security) unlike anything DP has seen. Perfect for the mainframe.
>And, there ARE new mainframe shops.

"processing power"-the mainframe lost that battle long ago.
"security"-there's nothing inherently more secure about IBM zSystems than other 
platforms these days either, alas.

New mainframe shops? As the saying goes, "Pics or it didn't happen". I'd be 
thrilled to learn that these exist!




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Re: Banks migrate from mainframes to AI-driven cloud tech

2024-02-10 Thread Phil Smith III
Bob Bridges wrote:
>"...where mainframes' resilience meets the agility of cloud computing."  
>What is the "agility" of the cloud, exactly?

The ability to spin up more instances [of applications that are built that way, 
obviously] on demand/automatically. For certain very peaky workloads this is a 
huge win. Not that I'm in any way arguing that these are important applications 
in the real world, but things like Pinterest and Instagram at least started 
this way in AWS or GCP, still use the model (albeit presumably on their own 
cloud now): when something big happens and usage blows up, instead of just 
getting dog-slow or crashing, more instances get spun up and things hum along.

Yes, there are a ton of assumptions involved 
there-capacity/competence/security/etc. of the cloud provider. I'm very chary 
of public cloud for "real work" for this reason. But if you look at it at the 
right angle (perhaps squinting a lot!), you can see that-again, for the right 
workloads-it gets you out of the business of provisioning/capacity 
management/etc. Of course it also encourages inefficient code, but ?maybe? 
that's OK (again, in the right use cases).

One of the biggest problems, of course, is that folks don't understand the 
caveats, go in with both feet first, and get burned. All of the CSPs, for 
example, offer some sort of cryptographic service. None of them are BYOK (Bring 
Your Own Key)-in other words, you're trusting the service itself not to attack 
you or to get compromised and allow an attack. WCGW?

For software vendors, the attraction is that they don't have to build/manage as 
much of the platform as they do when they provide a fully functional server. 
All that really does is move that requirement from the vendor (once) to each 
customer, so it's a win for the vendor and a loss for the customer. That is, 
the customer has to do all the vulnerability scanning, patching, etc., instead 
of having the vendor do the heavy lifting (the wise customer does the scanning 
anyway, but then expects the vendor to provide the updates.) I keep waiting for 
the customer world to figure this out; hasn't happened yet AFAICT. Weird.


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Re: Banks migrate from mainframes to AI-driven cloud tech

2024-02-10 Thread Seymour J Metz
It's in the intrinsic angular momentum.

--
Shmuel (Seymour J.) Metz
http://mason.gmu.edu/~smetz3
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From: IBM Mainframe Discussion List  on behalf of Bob 
Bridges <0587168ababf-dmarc-requ...@listserv.ua.edu>
Sent: Saturday, February 10, 2024 3:09 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: Banks migrate from mainframes to AI-driven cloud tech

"...where mainframes’ resilience meets the agility of cloud computing."  What 
is the "agility" of the cloud, exactly?

---
Bob Bridges, robhbrid...@gmail.com, cell 336 382-7313

/* Always look a gift horse in the mouth.  It may have hoof-and-mouth disease.  
-Bob Bridges, 1977 */

-Original Message-
From: IBM Mainframe Discussion List  On Behalf Of 
Mark Regan
Sent: Friday, February 9, 2024 06:35

https://www.finextra.com/newsarticle/43673/banks-migrate-from-mainframes-to-ai-driven-cloud-tech

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Re: Banks migrate from mainframes to AI-driven cloud

2024-02-10 Thread Lennie Dymoke-Bradshaw
" I have not seen a RISC system in 30 years"
" Sent from my iPhone"

What irony.
Lennie

-Original Message-
From: IBM Mainframe Discussion List  On Behalf Of 
Steve Beaver
Sent: 10 February 2024 15:52
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: Banks migrate from mainframes to AI-driven cloud

I have not seen a RISC system in 30 years 


Sent from my iPhone

No one said I could type with one thumb 

> On Feb 10, 2024, at 09:27, Arthur Fichtl  wrote:
> 
> Am 10.02.2024 um 06:00 schrieb IBM-MAIN automatic digest system:
> migration from the mainframe?
> 
> The mainframe as a piece of hardware might vanish. But the Exabytes  of MF 
> software might move to some sort of virtualization platform, I guess, may 
> that be  based on Intel, cloud, or RISC .
> 
> 
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Re: Banks migrate from mainframes to AI-driven cloud tech

2024-02-10 Thread Bob Bridges
"...where mainframes’ resilience meets the agility of cloud computing."  What 
is the "agility" of the cloud, exactly?

---
Bob Bridges, robhbrid...@gmail.com, cell 336 382-7313

/* Always look a gift horse in the mouth.  It may have hoof-and-mouth disease.  
-Bob Bridges, 1977 */

-Original Message-
From: IBM Mainframe Discussion List  On Behalf Of 
Mark Regan
Sent: Friday, February 9, 2024 06:35

https://www.finextra.com/newsarticle/43673/banks-migrate-from-mainframes-to-ai-driven-cloud-tech
 

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Lets have a thought exercise: WAS Banks migrate from mainframes to AI-driven cloud tech

2024-02-10 Thread Tom Longfellow
Who wants to have a thought exercise where we can see where we end up.

In early wood frame constrution, joins were done with things like friction 
dovetails and Pegs.

Along comes the next techology - metal.Look at the new thing - Nails.  Lets 
use them to join our wood.

Metal technology changes --- and we get Screws.   An everybody rejoices at the 
wonderful new uses.

Parallels are glue and its family

But wait, how do we join metals  ---   oh yeah... metal pegs (rivets)... Pegs 
can still work,  and look at this new Bolt thing.   With parallels called 
welding.

-

NOW --- Everybody step back from your current comfort zone.  Be it mainframe or 
server. On-siteor Cloud.
And we want to 'DO' something using computers.
What I believe is that any technology can be beaten into shape to perform the 
task with enough effort and time.   
The problems start when humans get involved.  ALL humans have a bias to use 
what they find easiest and know best.
Put two or more groups of these to the task and you will get many many 
designs... all of them using the tools the designer knows best.
Then you have to  "pick a winner" and go with that.The decision may be 
based on categories totally outside the technology arguements (like budgets or 
legal requirements or the manager going out to lunch with a sales rep).

Time passes and new technologies come along... New thoughts on how to 
accoimplish the task... With everyone arguing that "My" way is the best for an 
entire list of reasons that "I" view as important.
The wars start when what "I" think is important is not what "You" think is 
important.
This can degrade into personal attacks and calling the competitor degrading 
names.

-
Now for the thought exercise:   IF we apply this view to all of the newsgroups, 
web articles, sales materials and water cooler chats.Can you find reasons 
why Tasks don't get done and are always being redone?

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Re: Banks migrate from mainframes to AI-driven cloud

2024-02-10 Thread Steve Beaver
I have not seen a RISC system in 30 years 


Sent from my iPhone

No one said I could type with one thumb 

> On Feb 10, 2024, at 09:27, Arthur Fichtl  wrote:
> 
> Am 10.02.2024 um 06:00 schrieb IBM-MAIN automatic digest system:
> migration from the mainframe?
> 
> The mainframe as a piece of hardware might vanish. But the Exabytes  of MF 
> software might move to some sort of virtualization platform, I guess, may 
> that be  based on Intel, cloud, or RISC .
> 
> 
> --
> Diese E-Mail wurde von Avast-Antivirussoftware auf Viren geprüft.
> www.avast.com
> 
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Banks migrate from mainframes to AI-driven cloud

2024-02-10 Thread Arthur Fichtl

Am 10.02.2024 um 06:00 schrieb IBM-MAIN automatic digest system:
migration from the mainframe?

The mainframe as a piece of hardware might vanish. But the Exabytes  of 
MF software might move to some sort of virtualization platform, I guess, 
may that be  based on Intel, cloud, or RISC .



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Re: XTL64E_EXTENTADDR

2024-02-10 Thread Peter Relson
It should be apparent that if you're using a 4-byte address from an 8-byte PSW, 
you cannot possibly handle information from an extent list that might have 
addresses above 2G. 

16-byte PSW with its 8-byte address (and similarly GR high halves) is provided 
only for time of error. That's not either SDWAEC1/SDWAEC2 of course.

If using 8-byte PSW, XTL64 is not needed, the "normal" extent list will do. 

Further, I don't recall how you are actually thinking to locate the XTL64. If 
you're using CSVQUERY (such as based on the address that you seem to be 
interested in), I can say only that that is a bad thing to do in a "general 
recovery routine" for all the reasons I laid out long ago to one of your 
earlier posts, including making sure that your recovery routine actually gets 
the opportunity to do the things that recovery routines must do (and not get 
short-circuited by calling an unnecessary routine that (just because of the 
nature of things) might unexpectedly fail). You might survive if you have 
established nested recovery to catch such a failure (which would surely be the 
minimum you have to do). But if you do provide CSVQUERY with an address and it 
finds it (based on such things as your search criteria - JPALPA or just JPA, 
for example), then you have a change to get an XTL64.

Peter Relson 
z/OS Core Technology Design



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