Here is an IBM presentation on how to tune z/OS and DB2 memory,
including some parameters to set.
http://www.mdug.org/Presentations/Large%20Memory%20DB2%20Perf%20MDUG.pdf
On Wed, Apr 12, 2017 at 2:55 PM, Art Gutowski wrote:
> Did someone on this thread say DB2??
>
> We have been experiencing simi
On Wed, Apr 12, 2017 at 3:41 PM, Tony Harminc wrote:
> On 12 April 2017 at 14:50, John McKown
> wrote:
>
> > With respect to the PoPS, "Convert UTF-8 to Unicode" is exactly the same
> > instruction as "Convert UTF-8 to UTF-16" and "Convert Unicode to UTF-8"
> is
> > the same instruction as "Con
On 12 April 2017 at 14:50, John McKown wrote:
> With respect to the PoPS, "Convert UTF-8 to Unicode" is exactly the same
> instruction as "Convert UTF-8 to UTF-16" and "Convert Unicode to UTF-8" is
> the same instruction as "Convert UTF-16 to UTF-8". The results are
> documented in the instruct
On Wed, Apr 12, 2017 at 3:37 PM, Tony Harminc wrote:
> On 12 April 2017 at 15:22, Paul Gilmartin <
> 000433f07816-dmarc-requ...@listserv.ua.edu> wrote:
>
> > I see that:
> > CONVERT UTF-8 TO UTF-16
> > CONVERT UTF-8 TO UNICODE
> > ...
> > 'B2A7'
> > ...
> > The one-, two-, three-, or
On 12 April 2017 at 15:22, Paul Gilmartin <
000433f07816-dmarc-requ...@listserv.ua.edu> wrote:
> I see that:
> CONVERT UTF-8 TO UTF-16
> CONVERT UTF-8 TO UNICODE
> ...
> 'B2A7'
> ...
> The one-, two-, three-, or four-byte UTF-8 characters of the second
> operand are converted to two-by
On Tue, 11 Apr 2017 09:22:06 -0400, Bill Ashton wrote:
>Wow...23 quadrillion calculations every second! At that speed, it should be
>able to come up with an answer before the question is even asked!
42
(Sorry, I know it's not Friday, but it was sitting right there.)
Art Gutowski
General Motors
Ditto ! Thanks Art
Jerry Whitteridge
Manager Mainframe Systems & Storage
Albertsons - Safeway Inc.
623 869 5523
Corporate Tieline - 85523
If you feel in control
you just aren't going fast enough.
-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] O
Yes, and Thank you Art for that - I've passed this info on to our DB2 SYSPROG
Carmen
- Original Message -
From: "Art Gutowski"
To: IBM-MAIN@LISTSERV.UA.EDU
Sent: Wednesday, April 12, 2017 2:55:53 PM
Subject: Re: Paging subsystems in the era of bigass memory
Did someone on this t
Did someone on this thread say DB2??
We have been experiencing similar AUX storage creep on our DB2 systems,
particularly during LARGE reorgs (more of a gallop than a creep). Our DB2 guys
did some research, opened an ETR with IBM, and found this relic:
Q:
"[Why was] set realstorage_managemen
On Wed, Apr 12, 2017 at 2:22 PM, Paul Gilmartin <
000433f07816-dmarc-requ...@listserv.ua.edu> wrote:
> On Wed, 12 Apr 2017 13:50:47 -0500, John McKown wrote:
> >
> >> * CONVERT UNICODE TO UTF-8
> >> * CONVERT UTF-8 TO UNICODE
> >>
> >> What's "UNICODE"? I suppose it's in a glossary somewhere.
On Wed, 12 Apr 2017 13:50:47 -0500, John McKown wrote:
>
>> * CONVERT UNICODE TO UTF-8
>> * CONVERT UTF-8 TO UNICODE
>>
>> What's "UNICODE"? I suppose it's in a glossary somewhere.
>
>With respect to the PoPS, "Convert UTF-8 to Unicode" is exactly the same
>instruction as "Convert UTF-8 to UTF-16
The topic seems to of morphed
from
Do I need to acheive a 30% page dataset utilization from virtual storage stable
LPAR with a single large DB2
to
Running many DB2s in a single LPAR I seem to have a memory leak that requires
periodic IPLs to avoid an aux storage problem
other than some common wo
On Wed, Apr 12, 2017 at 1:29 PM, Paul Gilmartin <
000433f07816-dmarc-requ...@listserv.ua.edu> wrote:
>
> I also see:
> * CONVERT UNICODE TO UTF-8
> * CONVERT UTF-8 TO UNICODE
>
> What's "UNICODE"? I suppose it's in a glossary somewhere.
>
With respect to the PoPS, "Convert UTF-8 to Unicode"
On Wed, 12 Apr 2017 13:35:22 -0400, Don Poitras wrote:
>> >
>> Alas, poor UTF-8, so pervasively used elsewhere.
>
>"Elsewhere" in this case to conspicuously exclude Windows.
>
Hmmm. If I name an NTFS file in Cyrillic characters, what representation
is used? I had thought it was UTF-8.
Ah, well,
On Wed, 12 Apr 2017 13:13:01 -0400, Tony Harminc wrote:
>
>> Alas, poor UTF-8, so pervasively used elsewhere.
>
>It's a fine interchange format, but a huge pain to actually process.
>
An offsetting advantage is that UTF-8 strings can be embedded as quoted
strings in most languages as if they were
For you, I hope that never happens, I have some AUX pages that never free, and
creep 1% or so every 2 days, been following the discussion and trying to
undersand why suddenly DB2 seems to be the culprit, when I've seen DB2
workloads
not have an adverse effect on AUX storage, my last IPL of this
I'd like to pull this discussion back up to the jet stream level. We face the
prospect of having to IPL z/OS just to relieve an ASM shortage. Weenie-ware
servers seem to run forever without this encumbrance. We put our highest-value
mission-critical applications on a platform that cannot keep it
000a2a8c2020-dmarc-requ...@listserv.ua.edu (Tom Marchant) writes:
> Are you suggesting that before DB2 references a page containing a
> buffer, it checks to see if it is paged out? And that if it is paged out,
> it doesn't use the record in the buffer, but instead reads it into a
> different
On Wed, Apr 12, 2017 at 12:35 PM, Don Poitras wrote:
> In article <9210386730479139.wa.paulgboulderaim@listserv.ua.edu> you
> wrote:
> > On Wed, 12 Apr 2017 08:14:33 -0500, John McKown wrote:
> > >
> > >?z/OS has UNICODE System Services to "help" with this sort of thing.
> > >https://www.ibm.
In article <9210386730479139.wa.paulgboulderaim@listserv.ua.edu> you wrote:
> On Wed, 12 Apr 2017 08:14:33 -0500, John McKown wrote:
> >
> >?z/OS has UNICODE System Services to "help" with this sort of thing.
> >https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.2.0/com.ibm.zos.v2r2.cunu10
On Wed, 12 Apr 2017 12:44:32 -0400, Tony Harminc wrote:
>On 12 April 2017 at 10:16, Tom Marchant <
>000a2a8c2020-dmarc-requ...@listserv.ua.edu> wrote:
>[DB2]
>
>> It still makes no sense to me. It certainly can't read the record into the
>> same page, because that would require that the page b
On 12 April 2017 at 10:58, Paul Gilmartin <
000433f07816-dmarc-requ...@listserv.ua.edu> wrote:
> >Also, the currently hardware has a lot more translate instructions beyond
> >"TR". There is "TROO" (Translate One to One); "TROT" (Translate One to
> >Two); "TRTO" (Translate Two to One); and "TRT
On 12 April 2017 at 10:16, Tom Marchant <
000a2a8c2020-dmarc-requ...@listserv.ua.edu> wrote:
[DB2]
> So, if it thinks it would be faster to read the record from DASD than for
> MVS to page in the buffer page(s) containing the record, it will read the
> record into different pages that have not
On 04/12/2017 10:16 AM, Paul Gilmartin wrote:
> On Wed, 12 Apr 2017 09:50:44 -0500, Joel C. Ewing wrote:
>> GETMAIN returns a success indication based purely on whether virtual
>> storage is available to the address space within the REGION size
>> constrains.
>>
> Does it not check for available pa
ibmsysp...@ibm-sys-prog.com (Avram Friedman) writes:
> While they do not grow in in perfect lock step The presence of Big ass
> memory comes with big ass dasd volumes (these are the technical terms
> of course) Do you know 3350's and 2314s were once used as paging
> devices? For that matter do you
On Wed, 12 Apr 2017 09:50:44 -0500, Joel C. Ewing wrote:
>
>GETMAIN returns a success indication based purely on whether virtual
>storage is available to the address space within the REGION size
>constrains.
>
Does it not check for available paging space? Does this imply that your
job and my job
On Wed, 12 Apr 2017 08:14:33 -0500, John McKown wrote:
>
>z/OS has UNICODE System Services to "help" with this sort of thing.
>https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.2.0/com.ibm.zos.v2r2.cunu100/toc.htm
>
>Also, the currently hardware has a lot more translate instructions beyond
>
On 04/11/2017 05:41 PM, Paul Gilmartin wrote:
> On Tue, 11 Apr 2017 16:45:10 -0500, Greg Dyck wrote:
>
>> On 4/11/2017 3:26 PM, Paul Gilmartin wrote:
>>> My understanding, ancient, probably outdated, and certainly naive is that
>>> there is little communication between GETMAIN/FREEMAIN and the pagi
Thanks. So it *does* the same thing as TR, but with more controls. Nice.
On Wed, Apr 12, 2017 at 10:18 AM, John McKown
wrote:
> On Wed, Apr 12, 2017 at 8:46 AM, zMan wrote:
>
> > I'm not clear on the difference between TR and TROO, even after reading
> the
> > PofOp. Anyone got a good explanati
On Wed, Apr 12, 2017 at 8:46 AM, zMan wrote:
> I'm not clear on the difference between TR and TROO, even after reading the
> PofOp. Anyone got a good explanation?
>
In defiance of your request for a good explanation, I will write something
[grin]. TR basically can translate 1 to 256 bytes, the
On Wed, 12 Apr 2017 13:08:32 +, Vernooij, Kees wrote:
>
>> -Original Message-
>> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On
>> Behalf Of Tom Marchant
>> Sent: 12 April, 2017 15:03
>> To: IBM-MAIN@LISTSERV.UA.EDU
>> Subject: Re: Paging subsystems in the er
On Wed, 12 Apr 2017 06:26:34 -0700, Lizette Koehler wrote:
>Try Mark Zelden's website and see if there is anything of interest there.
>IPLINFO can be an interesting one for you
>
>http://www.mzelden.com/mvsutil.html
>
Perhaps: http://mzelden.com/mvsfiles/rexxstor.txt
Thank you, Mark.
>> ---
> Date:Tue, 11 Apr 2017 11:39:53 -0700
>From:Ed Jaffe
>Subject: Re: CPU Timerons/Seconds vs Wall-clock Time
>On 4/9/2017 8:48 AM, Lindy Mayfield wrote:
>> For example, if an MVS job ran and consumed 10 CPU seconds (SMF 30 I think),
>> can I assume that it at least took 10 seconds of elap
I'm not clear on the difference between TR and TROO, even after reading the
PofOp. Anyone got a good explanation?
On Wed, Apr 12, 2017 at 9:14 AM, John McKown
wrote:
> On Wed, Apr 12, 2017 at 7:58 AM, Avram Friedman <
> ibmsysp...@ibm-sys-prog.com
> > wrote:
>
> > There are 2 problems with multi
Try Mark Zelden's website and see if there is anything of interest there.
IPLINFO can be an interesting one for you
http://www.mzelden.com/mvsutil.html
Lizette
> -Original Message-
> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On
> Behalf Of Juergen Kehr
> S
While they do not grow in in perfect lock step
The presence of Big ass memory comes with big ass dasd volumes
(these are the technical terms of course)
Do you know 3350's and 2314s were once used as paging devices?
For that matter do you no the number 2314 was chosen as the # for a model of
disk d
I am the offering manager for XL C/C++ compiler at IBM. I would appreciate you
answering the following questions and send them directly to my email:
sher...@ca.ibm.com. It should take you less than 5 minutes.
-Are you using XL C/C++ compiler on z/OS? (yes/no)
-Would you recommend XL C/C++ on z
On Wed, Apr 12, 2017 at 7:58 AM, Avram Friedman wrote:
> There are 2 problems with multiable encoding methods
> 1. Display S360+ has special hardware support for converting binary /
> decimal to/from display EBCDIC. Any other encoding for display is roll
> your own.
> 2. Compares of hetrogeni
> -Original Message-
> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On
> Behalf Of Tom Marchant
> Sent: 12 April, 2017 15:03
> To: IBM-MAIN@LISTSERV.UA.EDU
> Subject: Re: Paging subsystems in the era of bigass memory
>
> On Wed, 12 Apr 2017 06:28:05 +, Vernoo
On Wed, 12 Apr 2017 06:28:05 +, Vernooij, Kees wrote:
>From here, there the story still goes on IIRC: if DB2 again needs
>the data, it would be paged in in any normal task. However, DB2
>is more intelligent: it keeps track of how long it takes to page-in
>the page or read it again from disk
There are 2 problems with multiable encoding methods
1. Display S360+ has special hardware support for converting binary / decimal
to/from display EBCDIC. Any other encoding for display is roll your own.
2. Compares of hetrogenious data is not supported by hardware "0" ebcdic does
not equal
On Wed, 12 Apr 2017 06:18:29 +, Vernooij, Kees wrote:
>The advantage of not freeing the aux slot was that a page could
>be paged out without I/O if it had not been changed. Somewhat
>the opposite op page reclaim. Freeing it after it has been changed
>is of course a 100% useful reclaim of au
On 4/12/2017 1:19 AM, K wrote:
The order I have downloaded from shopZ is about 1,3GB. The Ibm
download Director has created in SMPPTFIN two files of 500 and a last
one of 300MB. So, instead of one SMPMCS.pax I have three files
file1.1of3, file2.2of3 and file3.3of3. How can I merge these file to
Hi Jürgen,
I thought I had something similar, but it may have been SHOWMVS instead.
However, if it helps, here some basic starting code that will loop through the
AS's. You just have to find the other CB's.
Br,
Lindy
/* Rexx */
/*
> -Original Message-
> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On
> Behalf Of Tom Marchant
> Sent: 12 April, 2017 14:40
> To: IBM-MAIN@LISTSERV.UA.EDU
> Subject: Re: unCATALOG after a RENAME
>
> On Wed, 12 Apr 2017 06:14:58 -0400, Thomas David Rivers wrote:
On Wed, 12 Apr 2017 06:14:58 -0400, Thomas David Rivers wrote:
>Is there a programattic mechanism for determining if a data-set is SMS
>managed?
>I'm wondering if an SVC 99 asking for the data-set's management-class is
>sufficient
I'd use STORCLAS. You can get it either with SVC 99 or the Catalog
That is most likely a bad idea.
The preferred method IMO, would be to upload/GIMUNZIP each file into a separate
z/OS dataset.
Just concatenate them on the SMPPFTIN when you run the receive.
HTH,
The order I have downloaded from shopZ is about 1,3GB. The Ibm download
Director has created in SM
IBM has closed APAR OA51579 and the PTF's are now available. This resolves a
serious PDSE corruption issue that occurs with PDSE V2 Member Generations. The
symptoms documented in the APAR cover some, but NOT ALL, of the situations
where corruption can occur and since installing the fixtest apar
retired mainframer wrote:
If the dataset in question is not SMS managed, CAMLST/RENAME makes no effort
to update the catalog. Therefore your UNCAT and CAT steps are necessary and
should succeed.
If the dataset in question is SMS managed, coordinates the required changes
to the VTOC, the VTOC i
Hello,
on page 44 of this older SHARE presentation
https://share.confex.com/share/115/webprogram/Handout/Session6865/Understanding%20zOS%20CS%20storage%20use.pdf
a REXX procedure is mentioned, which shows several storage consumptions.
Does anybody know where to get this REXX procedure?
Thanks
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