Well, nomenclature change is the only constant thing.
We had z900 and z800
Then we had z990 and z890
Then we had z9-109 and we expected z8... but they announced z9BC and
renamed z9-109 to z9EC.
Then we had z10EC and z10BC
So we expected z11, but we got z196. And z114. They clarified it is 1
for first, 96 for # CPs...
Then EC12. And BC12.
So next generation was neither EC13 nor z9xxxEC but simply z13. With no
EC. Then z13s arrived.
So next was z14 and we expected... but got z14 ZR1 - why ZR1? Why not
R4:'#$3 ???
Nevermind z15 arrived. So we were guessing: z15s? z15BC? z15 ZR1? No!
z15 T02. Obviously big machine was z15 T01. Well... no. It wasn't quite
obvious.
Now we have z16. Ooops! z16 A01.
Let me guess the name of small z16: maybe z16 A02? No! No way! It must
be something unexpected.
Fine print: z196 was indeed 96-cp one. 80 for customer and SAPs, and
spares. And z114 has 14 processors: 10 for OS and 2 SAPs and 2 spares.
Of course it is about maximum quantities.
--
Radoslaw Skorupka
Lodz, Poland
W dniu 02.03.2023 o 18:33, Mike Shorkend pisze:
I still use the BC/EC nomenclature for lack of a better one.
It comes down to the number of CPs you can have. The z15-T01("EC") has up
to 190 general processors while the z15-T02("BC") is limited to 6. It goes
back to the number of possible drawers on the CEC.
Traditionally, the BC machines have many more sub capacity settings
compared with EC. You can dial the processors from A to Z , so 26
different capacity settings per CP.
The EC machines have much less granularity
On Thu, 2 Mar 2023 at 19:13, Pommier, Rex <[email protected]> wrote:
IBM dropped the EC/BC nomenclature, much to my chagrin. I'm guessing I'm
not the only one that still refers to the big one as the EC and the smaller
sibling as the BC, even though IBM doesn't.
-----Original Message-----
From: IBM Mainframe Discussion List <[email protected]> On Behalf
Of Tom Brennan
Sent: Thursday, March 2, 2023 10:04 AM
To: [email protected]
Subject: [EXTERNAL] Re: Z15 EOM
Didn't IBM drop the BC vs. EC notation a while ago? I've been calling
them water-cooled vs. air-cooled. The number of frames is obviously
confusing, along with air-cooled model numbers T02 and A01 (and I assume
A02 on the way) which look like speed/cp settings.
On 3/2/2023 6:43 AM, P H wrote:
The slide 91 is NOT the z16 'mid-range/business class' system. Depending
on the configuration the z16 'high end' system, as announced, comes in 1,
2, 3 or 4 racks.l!
Sent from Outlook for
Android<https://urldefense.com/v3/__https://aka.ms/AAb9ysg__;!!KjMRP1I
xj6eLE0Fj!rA4k_tOBFRImng4OTWTF2Hcov3uCOXypF3klop9mtSWE7jN-yDuynqSA1Rcx
kxy6kwV1zTq-yFwZSFklGftFxeY$ > ________________________________
From: IBM Mainframe Discussion List <[email protected]> on
behalf of Joe Monk <[email protected]>
Sent: Thursday, March 2, 2023 7:29:14 PM
To: [email protected] <[email protected]>
Subject: Re: Z15 EOM
"The one rack z16 (aka Business Class) has not yet been announced,"
It already exists. See slide 91.
https://urldefense.com/v3/__https://ibm-zcouncil.com/wp-content/upload
s/2022/05/z16-Technical-Overview-50M-KennyStine.pdf__;!!KjMRP1Ixj6eLE0
Fj!rA4k_tOBFRImng4OTWTF2Hcov3uCOXypF3klop9mtSWE7jN-yDuynqSA1Rcxkxy6kwV
1zTq-yFwZSFklSYEm_rc$
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