RMF SMF 70-1 enables you to tot up the storage allocated to each LPAR. It does
NOT know the customer memory.
For the latter I use VPD; You use the number noted from the HMC.
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Jennifer McCumber <086750529ebc-dmarc-requ...@lists
So I think 14/15 has job identification in it. So what does SMF 30 say the
userid is for that job?
From: IBM Mainframe Discussion List on behalf of
Roger Lowe <05313747ec35-dmarc-requ...@listserv.ua.edu>
Date: Thursday, 10 July 2025 at 07:56
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: [EXTERNAL]
IIRC you also need Virtual Flash on the LPAR – because it is relying on modules
not being paged to external disk. The reasonable assumption is it’s much harder
to tamper with them inside the machine than on disk.
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of Tom
Mathias
Dat
Re “when the CICS region doesn't have adequate workload to be classified as a
server” I have to wonder what the serving count in SMF 72-3 actually represents.
It might be sample states where the region in the SC was found to be a server.
It certainly isn’t transaction count.
Cheers, Martin
Fro
When I first heard of this I thought it imperative that installations define
clear procedures. So that in the middle of the night – which IPLs often are –
or in dire straits – which they sometimes are – people would know how to decide
and wouldn’t panic.
Cheers, Martin
From: IBM Mainframe Disc
I remember the staples and reading the TNL pages to see what had changed. But
then I was the young SE that read the MVS/XA and MVS/ESA manuals on my daily
commute. 😊
From: IBM Mainframe Discussion List on behalf of
billog...@optonline.net
Date: Friday, 6 June 2025 at 15:22
To: IBM-MAIN@LISTS
I don’t remember if we changed the dash number when shipping TNL’s. My memory*
is biased towards “no” and – as the keeper of the cupboard in my branch – we
updated the dash when we shipped a whole new physical copy (from Mechanicsburg).
* From 1987/88 😊
From: IBM Mainframe Discussion List on b
ith;
> except this colleague has all the references to hand immediately.
>
> Lennie
>
> -Original Message-
> From: IBM Mainframe Discussion List On Behalf Of
> Martin Packer
> Sent: 26 May 2025 09:49
> To: IBM-MAIN@LISTSERV.UA.EDU
> Subject: Re: RTFM
>
&g
Periodically I test Generative AI with stuff I darned well know about. I’m
still unimpressed.
Oh well, accuracy seems to be deprecated in favour of expedience.
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Andrew Rowley <070d6809bfe9-dmarc-requ...@listserv.ua.edu>
Date:
Db2 Accounting Trace with Package-Level Accounting (Trace classes 1,2,3,7,8)
might well give more of a clue. This is SMF 101.
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Colin Paice <059d4daca697-dmarc-requ...@listserv.ua.edu>
Date: Tuesday, 20 May 2025 at 11:14
To: IBM
Jim, he might not have my WLM XML Service Definition Formatter open source
project. 😊
From: IBM Mainframe Discussion List on behalf of
Horne, Jim <0801341534b6-dmarc-requ...@listserv.ua.edu>
Date: Wednesday, 23 April 2025 at 18:52
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: [EXTERNAL] Re: WL
These numbers do NOT surprise me.
From: IBM Mainframe Discussion List on behalf of Tom
Brennan
Date: Thursday, 17 April 2025 at 22:48
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: [EXTERNAL] Re: z17
That's different than what I've found so far. I went to ResourceLink
just now and entered basically th
I can’t speak to any putative baby z17 but I can say this…
1. It’s certain z16 configurations that draw more power than their z15
counterparts, but only certain ones. Typically the lower characterized core per
chip count might show this – according to a graph I have (and use in my
Drawers, Of C
___
From: IBM Mainframe Discussion List on behalf of
Martin Packer
Sent: Sunday, March 23, 2025 3:11:52 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: New z16's packing slips
I tend to use Vital Product Data (VPD). I’m certain its existence isn’t secret
– but don’t know how widely it is
I tend to use Vital Product Data (VPD). I’m certain its existence isn’t secret
– but don’t know how widely it is available.
From: IBM Mainframe Discussion List on behalf of Joe
Monk <05971158733e-dmarc-requ...@listserv.ua.edu>
Date: Saturday, 22 March 2025 at 17:01
To: IBM-MAIN@LISTSERV.UA.
DuckDuckGo has the same annoying behaviour.
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of Tom
Brennan
Date: Monday, 17 March 2025 at 14:58
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: [EXTERNAL] Re: Links for ESS manuals
IBM should remove the version number from the URL's for the l
Not to disagree but a filesystem would’ve been necessary – beyond 8-character
qualifiers and 44 characters overall.
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Phil Smith III
Date: Wednesday, 26 March 2025 at 16:22
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: [EXTERNAL] Re: Java
02 is Poughkeepsie. 51 was Montpellier. 83 was Dublin, 84 was Singapore. I just
saw a 8562-T02 with 78 as plant number – which I’m guessing is Brasil. (The
customer is near Europe / Asia border so that surprised me.)
HTH, Martin
From: IBM Mainframe Discussion List on behalf of
Radoslaw Skorup
Right. Duna Williamson, now long retired, did an excellent job with that book.
And it has been nicely updated for 64 Bit.
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of Rob
Scott <0618c90e6fdf-dmarc-requ...@listserv.ua.edu>
Date: Wednesday, 12 March 2025 at 20:59
To: IBM-M
Ah, a “therapeutic IPL”. 😊
From: IBM Mainframe Discussion List on behalf of
Pommier, Rex <0737643a508d-dmarc-requ...@listserv.ua.edu>
Date: Tuesday, 11 February 2025 at 17:28
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: [EXTERNAL] Scheduled IPL Frequency
Both/and?
I used to work for a site th
For what it’s worth I see IPLs in two places in SMF:
* SMF 70-1 has an IPL time field.
* SMF 30 Reader Start Time for Master Scheduler Address Space is close
enough.
This might be useful to someone in assessing their estate.
Cheers, Martin
From: IBM Mainframe Discussion List on behalf
I wasn’t involved in this design but this makes perfect sense: You’ve told WLM
you don’t care how slowly that work runs – so why cross over?
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Sebastian Welton <07116c5c4437-dmarc-requ...@listserv.ua.edu>
Date: Tuesday, 4 Februa
Let me just point out that these can be high volume records; REXX wouldn’t be
my first choice therefore.
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Steve Estle <05dcac13570d-dmarc-requ...@listserv.ua.edu>
Date: Tuesday, 28 January 2025 at 21:10
To: IBM-MAIN@LISTSERV.UA
“Don’t anthropomorphise computers; They don’t like it.” 😊
(Oldie but goodie)
From: IBM Mainframe Discussion List on behalf of Bob
Bridges <0587168ababf-dmarc-requ...@listserv.ua.edu>
Date: Wednesday, 15 January 2025 at 11:38
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: [EXTERNAL] Re: AI makes stu
serialise quite substantially, thus making any
subtask allocation process wait, but maybe things are different now.
Lennie
-Original Message-
From: IBM Mainframe Discussion List On Behalf Of
Martin Packer
Sent: 10 December 2024 13:50
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: DYNAMNBR
As a
As a matter of interest, Lennie, are these data sets allocated and de-allocated
sequentially, or all at the same time? Question to others: Does that matter in
terms of (X)TIOT slots?
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Lennie Bradshaw
Date: Tuesday, 10 December 20
I’ve a feeling you’re being sarca(u)stic 😊 about the fetch rate but in case
you’re not…
… What would this module be doing in (I presume E)LPA?
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Steve Beaver <050e0c375a14-dmarc-requ...@listserv.ua.edu>
Date: Monday, 2 December
44PWAI presents x'EB4262F2'
Is that possible?
Best Regards
Ituriel do Nascimento Neto
z/OS System Programmer
Em sexta-feira, 29 de novembro de 2024 às 15:52:39 BRT, Martin Packer
escreveu:
Are you summing over multiple engines for the 1 coupling facility? That section
is re
Are you summing over multiple engines for the 1 coupling facility? That section
is repeated, once for each engine.
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Ituriel do Neto <03427ec2837d-dmarc-requ...@listserv.ua.edu>
Date: Friday, 29 November 2024 at 18:40
To: IBM-MA
It would be nice if – like Python – the parsing came with “did you mean?” 😊
TFIF. 😊
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Michael Babcock <05ad4e2d7232-dmarc-requ...@listserv.ua.edu>
Date: Friday, 22 November 2024 at 14:50
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: [E
What happens in any case if “the caller” (or somesuch) fails to add the
terminating (null?) character. I’m assuming this technique is length limited or
sets some kind of condition code.
Cheers, Martin (who is unfamiliar with this technique – so far)
From: IBM Mainframe Discussion List on behal
What I am observing is that many customers could have more private (24- or
31-bit) with a bit of care with the SQA and CSA definitions. That just might
help.
Alternatively, they could have more buffer within (E)CSA.
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Peter Relson
k that that will do the trick. Thank you for the tip.
Regards
Jack
On Wed, 2 Oct 2024 at 14:01, Martin Packer wrote:
> In real time?
>
> After the fact could be SMF 30 – as it has the numbers. However
> allocation is not used and some applications GETMAIN the whole of
> their
Exactly. I was going to say that. I?m concerned for all of those.
From: IBM Mainframe Discussion List on behalf of
Lennie Bradshaw
Date: Wednesday, 2 October 2024 at 14:06
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: [EXTERNAL] Re: Israel
So why have it directed only at people in Israel?
Why not incl
In real time?
After the fact could be SMF 30 – as it has the numbers. However allocation is
not used and some applications GETMAIN the whole of their region as a matter of
course.
From: IBM Mainframe Discussion List on behalf of
Jack Zukt <059cd493dd41-dmarc-requ...@listserv.ua.edu>
Date:
:20 PM Martin Packer
wrote:
> If this weren’t the case Period Aging would work differently for (up to
> )60% of DDF transactions (the zIIP ones) versus (at least) 40% (the GCP
> ones). Indeed Period Aging wouldn’t work at all for the former (barring
> zIIP-on-GCP).
>
> Oh, not
If this weren’t the case Period Aging would work differently for (up to )60% of
DDF transactions (the zIIP ones) versus (at least) 40% (the GCP ones). Indeed
Period Aging wouldn’t work at all for the former (barring zIIP-on-GCP).
Oh, not to confuse this with the newer High Performance DBAT suppo
Unsurprised ChatGPT hallucinated. I once tried asking it to write me blog posts
– and it hallucinated like mad. “I’ll some of what it’s having.” 😊
For balance, I tried the same thing on what I’m supposed to be enthusiastic
about and it hallucinated just as badly.
I suspect we’ll get to the poin
You have until the end of today to submit a presentation proposal on this (z/OS
Unix SMF 30 parsing) for GSE UK Annual Conference, Scott.
Not to put pressure on you in public… 😊
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Scott Chapman <03fffd029d68-dmarc-requ...@lists
I’d add that VIO was always said to simulate a device and therefore was quite
an expensive way of doing Data-In-Memory.
Having said that, it might be the only option.
Cheers, Martin (who wrote VIOTOES LIST3820 in the late 1980’s). 😊
From: IBM Mainframe Discussion List on behalf of Jim
Mulder
They should be below Db2 Engine in the hierarchy…
IRLM should be in SYSSTC.
DBM1, MSTR, DIST should be in Importance 1, CPU Critical.
DDF transactions should be Importance 2 on downwards.
Right now you have DDF work fighting with Db2 – in whatever shaped boxing ring.
😊
Cheers, Martin
From: I
My Dad (now long since retired) worked with 1904’s and then 29xx and 39xx.
(He also had IBM kit in the end – 3090 – but that isn’t really how I got into
IBM.) 😊
I think there was / is a 1904 in the Science Museum in London.
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Stev
-zsh
Thanks Ed!
From: IBM Mainframe Discussion List on behalf of Ed
Jaffe <05acc3c79bf7-dmarc-requ...@listserv.ua.edu>
Date: Saturday, 17 February 2024 at 16:04
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: [EXTERNAL] Re: zsh for z/OS
On 2/17/2024 2:34 AM, Martin Packer wrote:
> I thin
I think this is the same shell as Mac OS. I use it there a bit – but getting
stronger. Right now I don’t have a 3.1 system to play with (and rarely do Unix
stuff on z/OS anyway).
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Frank Swarbrick
Date: Friday, 16 February 2024 at
I’m assuming that when STSI was enhanced for z16 – and it was a great
enhancement – all the ways of calling it were able to support the new
information (and any environmentals).
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Attila Fogarasi
Date: Saturday, 3 February 2024 at
An E15 exit could do it – except it might be called too frequently. But
probably STCKE would work. I think that’d be expensive, though.
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Massimo Biancucci
Date: Thursday, 1 February 2024 at 15:12
To: IBM-MAIN@LISTSERV.UA.EDU
Subj
If I’m interpreting the z16 materials right it’s within the core’s area.
From: IBM Mainframe Discussion List on behalf of
Eric D Rossman
Date: Thursday, 25 January 2024 at 15:07
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: [EXTERNAL] Re: Encryption and decryption - processor or TCPIP
> Actually, ever
on and decryption - processor or TCPIP
Matin said " Easily managed by provisioning enough zIIP."
As one of my old manager's used to say, "you can solve anything with a pot
of gold".
-Original Message-
From: IBM Mainframe Discussion List On Behalf Of
Martin Packer
Sent
TLS. I think you are correct that this would show against the TCP/IP
address space. But I think you should confirm that with others. (e.g. Chris
Meyer)
Lennie
-Original Message-
From: IBM Mainframe Discussion List On Behalf Of
Martin Packer
Sent: 24 January 2024 10:10
To: IBM-MAIN@LISTSERV.
In the back of my mind I also think that the crypto processing for TCP/IP
could be performed on a zIIP processor (which could be using its CPACF, of
course).
Lennie, or anybody who knows, which address space would show zIIP CPU time
under those circumstances? I’m assuming TCP/IP address space(s
To my mind the real problem is making the data consistent and make sense.
BTW names are one thing but Plant/Serial is a good example of something that’s
at least a machine identifier.
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Radoslaw Skorupka <0471ebeac275-dmarc-req
and deactivated SYSCONS from operating system message
console in HMC
On Tue, Dec 12, 2023, 2:34 PM Peter wrote:
> Are there any tools available in cbttape to view 78-2 ?
>
>
>
> On Tue, Dec 12, 2023, 2:01 PM Martin Packer
> wrote:
>
>> Right. To Allan’s point it
sage-
> From: IBM Mainframe Discussion List On
> Behalf Of Martin Packer
> Sent: Sunday, November 26, 2023 2:39 AM
> To: IBM-MAIN@LISTSERV.UA.EDU
> Subject: Re: SQA overflow condition
>
> [CAUTION: This Email is from outside the Organization. Unless you
> trust the sender, D
ification: Confidential
>
> 100% concur w/Martin
>
> -Original Message-
> From: IBM Mainframe Discussion List On Behalf
> Of Martin Packer
> Sent: Sunday, November 26, 2023 2:39 AM
> To: IBM-MAIN@LISTSERV.UA.EDU
> Subject: Re: SQA overflow condition
>
>
This thread has got me thinking about services like IFTTT and Pushcut to handle
notifications etc from the HMC.
But then I guess none of you would be allowed to build anything around them.
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Grant Taylor <023065957af1-dmarc-req
ystem anymore because I'm retired so I don't have any
> additional details I can give you around the SAS code.
>
> Paul
>
> -Original Message-
> From: IBM Mainframe Discussion List On Behalf
> Of Martin Packer
> Sent: Sunday, November 26, 2023 2:39 AM
&g
(This is not specific advice but a way of thinking about things.)
SQA can, of course, overflow into CSA - with no real harm done. Unless it
causes CSA to go short. (CSA can't overflow into SQA, of course.)
The above statements are true for both 24-bit and 31-bit.
1409K below the line, though, i
] Re: Switching between SMT-1 and SMT-2
On 5/09/2023 10:30 pm, Martin Packer wrote:
> And “100% busy” is the wrong criterion – if you want your system to be
> performant.
Isn't that what WLM is for?
25 years ago I did a WLM conversion on a single CPU system. A single CPU
is probably the mo
Minor correction – evident in the SMF data: One SAP runs SMT-1; The rest run
SMT-2.
(My code does, of course 😀, take this into account.)
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Attila Fogarasi
Date: Wednesday, 6 September 2023 at 09:41
To: IBM-MAIN@LISTSERV.UA.EDU
Su
And “100% busy” is the wrong criterion – if you want your system to be
performant.
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Peter Relson
Date: Tuesday, 5 September 2023 at 13:13
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: [EXTERNAL] Re: Switching between SMT-1 and SMT-2
The
Remind me, Scott (or anybody): Does switching modes cause a WLM reset? Might
not be something you want to do throughout the day – if so.
Thanks, Martin
From: IBM Mainframe Discussion List on behalf of
Scott Chapman <03fffd029d68-dmarc-requ...@listserv.ua.edu>
Date: Tuesday, 5 September 202
I think we had two 3279-3B’s in our branch. The rest were 3278’s.
Recall IBM had gone to PROFS-based email at that point (mid 1980’s) so
terminals were something everybody in the branch needed.
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of Jay
Maynard
Date: Thursday, 27 Jul
e-
From: IBM Mainframe Discussion List On Behalf Of
Martin Packer
Sent: Thursday, July 6, 2023 2:34 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: What happened to GC26-1672 Batch Local Shared Resource(LSR)
Documentation?
I rather thought the modern way was with built in things like access bias,
rat
I rather thought the modern way was with built in things like access bias,
rather than relying on a subsystem.
Is there a particular reason you need BLSR?
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Farley, Peter <031df298a9da-dmarc-requ...@listserv.ua.edu>
Date: Thurs
A small aside: That’s a pretty good estimate of the record count you’ve got
there. FB by any chance?
From: IBM Mainframe Discussion List on behalf of Don
Johnson <02ee771a0785-dmarc-requ...@listserv.ua.edu>
Date: Wednesday, 5 July 2023 at 14:37
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: [EXTERN
At the risk of duplicating what others have said – as this thread has run long…
… I would prefer specifying FILSZ over relying on static sort work allocations
– for the cases where DFSORT needs help in working out how much data needs
sorting.
Also, you can MEASURE sort work tracks allocated and
A couple of points to make:
1) The “up to 70%” makes 70% a target, not a guarantee.
2) Only certain python libraries are zIIP eligible. Think about the case where
someone wraps their COBOL program in just enough C to make a python module.
Then – if we didn’t have this specific list – that COBOL
I presented – briefly – on this yesterday at the Munich Resilience/Resiliency
conference.
Yes, SMF 74-4 tells you what IS – and perhaps tells you stuff to make you
resize structures.
To the point, though: You need to think through the scenarios – both for memory
and CF CPU. For example, you pr
at 7:36 AM, Martin Packer
wrote:
> Good study of SMF 74-4 would certainly help.
>
> Cheers, Martin
>
> From: IBM Mainframe Discussion List IBM-MAIN@LISTSERV.UA.EDU on behalf of
> Mark Jacobs 0224d287a4b1-dmarc-requ...@listserv.ua.edu
>
> Date: Wednesday, 14
Good study of SMF 74-4 would certainly help.
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Mark Jacobs <0224d287a4b1-dmarc-requ...@listserv.ua.edu>
Date: Wednesday, 14 June 2023 at 19:06
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: [EXTERNAL] Coupling Facility Structure Resizing
Because I haven't found a free 3270 Host Graphics emulator I've taken to
converting all the graphics I create using ADMUGIF to GIF. These I download
BINARY.
I don't suppose this helps the OP.
Cheers, Martin
Sent from my iPad
> On 20 Apr 2023, at 16:31, Dave Jones wrote:
>
> Unfortunately,
Not to answer the question but to note you can see zHPF effectiveness in SMF 73
Channel Path Activity data.
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Jantje. <033acf17e42f-dmarc-requ...@listserv.ua.edu>
Date: Friday, 14 April 2023 at 13:02
To: IBM-MAIN@LISTSERV.UA.EDU
Hint: A count might be achieved by summing the constant X’0001’ inserted
into qualifying rows. (That is if you don’t want to do it in eg OUTFIL.)
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Billy Ashton
Date: Monday, 27 March 2023 at 16:03
To: IBM-MAIN@LISTSERV.UA.EDU
You don’t need a dedicated engine to test CF – unless your test is a
Performance test. And then possibly a single one wouldn’t be helpful. Function
test should be fine with any old engine.
From: IBM Mainframe Discussion List on behalf of
Laurence Chiu
Date: Sunday, 5 March 2023 at 14:05
To: I
s/was/is 😊
From: IBM Mainframe Discussion List on behalf of
Roger Bolan
Date: Wednesday, 1 March 2023 at 01:07
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: [EXTERNAL] Re: BookManager
The B2H tool was BookMaster source to HTML, not BookManager
On Tue, Feb 28, 2023, 11:19 AM Colin Paice wrote:
> Th
B2H does BookMASTER to HTML, not BookManager to PDF. (And, yes, HTML to PDF is
probably trivial for most people.)
I use B2H on TSO in Batch almost daily, FWIW.
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Colin Paice
Date: Tuesday, 28 February 2023 at 18:19
To: IBM-MAIN@LI
Hi Al!
Re “ I don't recall how a CF LPAR using GCPs showed up.” It shows up with
logical processors in Pool 1 (GCP Pool). It’s discernable as a CF LPAR using
SMF 74-4 which contains Serial and LPAR Number, amongst other identifying
things.
It’s rare I see it but I DO see it.
Cheers, Martin
F
rol program, i.e.
stand alone utility. I believe it will be also Operating and no SMF.
--
Radoslaw Skorupka
Lodz, Poland
W dniu 24.02.2023 o 13:31, Martin Packer pisze:
> An interesting question is how to tell – from RMF – if an LPAR is shutdown
> but not deactivated. In my own code I use t
An interesting question is how to tell – from RMF – if an LPAR is shutdown but
not deactivated. In my own code I use the term “idle” – which means near zero
CPU – as that’s the closest I know how to get.
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of
Radoslaw Skorupka <04
Further to Bonnie’s point, I think I’d want to deactivate unused LPARs to get
the weights and HiperDispatch to work right for the active LPARs.
But tell me, how long should it take to activate an LPAR prior to IPL’ing it?
Thanks, Martin
From: IBM Mainframe Discussion List on behalf of
Bonnie
Hi Al! (et al) 😊
I’ve also asked for eg 02-12345 to be added – quite a while ago. I also was
turned down. But then I’m not a customer…
Cheers, Martin
From: IBM Mainframe Discussion List on behalf of Al
Sherkow
Date: Tuesday, 14 February 2023 at 16:39
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: [E
“Customers do the darnedest things…” 😊
From: IBM Mainframe Discussion List on behalf of Ed
Jaffe
Date: Thursday, 29 September 2022 at 22:57
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: [EXTERNAL] Re: SYSPLEX / SYSNAME / SMFID stability
On 9/29/2022 5:19 AM, Mark A. Brooks wrote:
> Right, I'm not awar
If it moves to another machine is it still the same LPAR?
From: IBM Mainframe Discussion List on behalf of
Matt Hogstrom
Date: Wednesday, 28 September 2022 at 13:59
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: [EXTERNAL] SYSPLEX / SYSNAME / SMFID stability
We had an internal debate about the stabilit
How much JNI, though? That isn't zIIP eligible.
Cheers, Martin
> On 11 Aug 2022, at 23:07, Longnecker, Dennis
> wrote:
>
> We run a lot of JAVA workloads under WebSphere Liberty on our z15.
>
> We are seeing hardly any utilization on our 2 specialty engines (ziip/zaap).
> It is my underst
Glad there's still interest in that one. I'm rather proud of it. :-)
Seriously, much of what we wrote is still valid. There are just a few places
where more modern techniques exist.
Cheers, Martin
Sent from my iPad
> On 1 Jul 2022, at 02:25, Sri h Kolusu wrote:
>
>
>>
>>> Does anyone have
last episode of our podcast.) 😊
One limit you didn’t mention – but I found of interest recently – is CFCC. I’m
told the limit for that is 3TB. (Customer was at 2TB and could use more – so
this was not academic.)
Hoping this helps.
Martin Packer, Senior Performance, Capacity, Architecture
Look up "SS,EQ," in the manual.
Cheers, Martin
Martin Packer
WW z/OS Performance, Capacity and Architecture, IBM Technology Sales
+44-7802-245-584
email: martin_pac...@uk.ibm.com
Twitter / Facebook IDs: MartinPacker
Blog: https://mainframeperformancetopics.com
Mainframe, P
SMF 78-2 RMF Virtual Storage Activity data / report is what I'd use. But I note
it might not be that helpful with spikes.
https://mainframeperformancetopics.com/2020/01/05/how-i-look-at-virtual-storage/
is more relevant than
https://mainframeperformancetopics.com/2021/07/21/time-for-action-on-
Late to the party, I'm wondering what SMF 30 says.
Cheers, Martin
Martin Packer
WW z/OS Performance, Capacity and Architecture, IBM Technology Sales
+44-7802-245-584
email: martin_pac...@uk.ibm.com
Twitter / Facebook IDs: MartinPacker
Blog: https://mainframeperformancetopics.com
Main
A useful analogy here might be Db2 - which is selective about which areas
it dumps. (Certainly around the "relatively low value" buffer pools.) You
might want to ask on CICS-L which areas CICS might exclude from a dump.
Cheers, Martin
Martin Packer
WW z/OS Performance, Ca
Peter, you definitely answered the question I intended to ask.
Thanks, Martin
Martin Packer
WW z/OS Performance, Capacity and Architecture, IBM Technology Sales
+44-7802-245-584
email: martin_pac...@uk.ibm.com
Twitter / Facebook IDs: MartinPacker
Blog: https://mainframeperformancetopics.com
As a matter of interest, what typically happens on the SIGP'ed to processor
when a SIGP is issued? I assume some kind of routine runs.
Cheers, Martin
Sent from my iPad
> On 14 Oct 2021, at 03:24, Jim Mulder wrote:
>
> It is assigned.
> It is used by z/OS.
> It is intentionally not described i
I, too, put DSN first. More importantly to me, I put it on a separate
line. That makes ISPF File Tailoring more reliable and I'm often wanting
to change the data sets I'm pointing at.
But then I'm not exactly in a Production shop.
Martin Packer
WW z/OS Performance, Capacity a
Thank you KB!
You can imagine my disappointment at finding all the links to it at the
IBM Redbooks site to be broken.
Cheers, Martin
Martin Packer
WW z/OS Performance, Capacity and Architecture, IBM Technology Sales
+44-7802-245-584
email: martin_pac...@uk.ibm.com
Twitter / Facebook IDs
I think it's gone. Does anyone still have a PDF of it?
Thanks, Martin
Martin Packer
WW z/OS Performance, Capacity and Architecture, IBM Technology Sales
+44-7802-245-584
email: martin_pac...@uk.ibm.com
Twitter / Facebook IDs: MartinPacker
Blog: https://mainframeperformancetopic
Between steps can't be pipes, can be VIO. Between jobs can be pipes, can't
be VIO.
That second sentence depends on the ability to schedule two jobs (possibly
originally steps of the same job) alongside each other.
Fun stuff but / and somewhat complex - which is what inspired me to start
writing
ipes/MVS available as part
of z/OS. I'd love to be talking about them again and supporting customers
using them. But I'm just a field guy.
Cheers, Martin
Martin Packer
WW z/OS Performance, Capacity and Architecture, IBM Technology Sales
+44-7802-245-584
email: martin_pac...@uk.ibm.com
"a fully configured parallel sysplex" - in the sense you meant it - is
something I see less often than I'd like. :-(
As a Performance guy, often the conversations I have with customers - based
on their data - have a big dollop of Resilience in them.
There are those that have embraced "a fully c
which I
would also contemplate.
Cheers, Martin
Martin Packer
WW z/OS Performance, Capacity and Architecture, IBM Technology Sales
+44-7802-245-584
email: martin_pac...@uk.ibm.com
Twitter / Facebook IDs: MartinPacker
Blog: https://mainframeperformancetopics.com
Mainframe, Performance,
artin
Martin Packer
WW z/OS Performance, Capacity and Architecture, IBM Technology Sales
+44-7802-245-584
email: martin_pac...@uk.ibm.com
Twitter / Facebook IDs: MartinPacker
Blog: https://mainframeperformancetopics.com
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