Re: Big LPAR vs small LPAR and DataSharing.

In short, giant LPARs can definitely be problematic. Similarly, too small LPARs can be problematic. Somewhere in the middle is ideal, but where that is will depend. First off, the most significant impact is you don't want LPARs whose processor count is so high that it crosses drawers. (In

Re: Anyone exploiting ZEDC?

. IIRC, I was only looking at at CPU because I/O time can be significantly variable depending on where we reading the data from. And doing less I/O is obviously always better, and can significantly impact runtime in some cases. So I/O time wasn't really a question in my mind. Scott Chapman

Re: Anyone exploiting ZEDC?

increase in CPU would be those that are completely idle and doing nothing but writing interval SMF records to say they haven't processed any data. Scott Chapman On Wed, 17 Apr 2024 16:36:34 +1000, Andrew Rowley wrote: >On 17/04/2024 12:09 pm, Michael Oujesky wrote: >> Yes and zEDC poorly c

Re: WLM - service class and Dispatch priority

LM section. The "Introdution to the WLM" presentation might be a good place to start. "WLM’s Algorithms – How WLM Works" might be another good early one to look at. It sounds like "Revisiting Goals over Time" might also be of interest. :) Scott Chapman On Wed,

Re: Masking SMF data internally

t;that might be in the SMF type 7x records. While I agree that the 7x records generally have nothing that should be considered "sensitive", some organizations consider system names sensitive. Seems overkill to me,

Re: SMF Interval

t set to that" makes much less sense to me. Scott Chapman On Fri, 29 Dec 2023 17:35:56 -0800, Ed Jaffe wrote: >On 12/29/2023 3:20 PM, Mark Zelden wrote: >> This paper from Scott Chapman of EPS talks about the subject and he agrees >> with >> me that it should be no long

Re: AI System Services on z/OS 3.1 - is a CF really mandatory?

how interested people are in general in EzNoSQL. Scott Chapman On Mon, 20 Nov 2023 17:28:17 -0600, Peter Bishop wrote: >Also, given it's just SMF data being used here, surely there's a way for z/OS >to process that without VSAM RLS and EzNoSQL (?). Perhaps they are using >&quo

Re: AI System Services on z/OS 3.1 - is a CF really mandatory?

ng on a GP. But it requires some effort to configure and manage. Scott Chapman On Mon, 20 Nov 2023 06:32:08 +, Timothy Sipples wrote: >The z/OS AI Framework requires EzNoSQL, EzNoSQL requires VSAM Record-Level >Sharing (RLS), and VSAM RLS requires a Coupling Facility (internal or >external

Re: Switching between SMT-1 and SMT-2

was particularly problematic, but they're not the only ones that could benefit from more than 6 CPs that could be finely adjusted in terms of capacity. Scott Chapman On Wed, 6 Sep 2023 09:52:47 +, Martin Packer wrote: >I really hope you�re not advising customers to run the zIIP pool at 100%.

Re: Switching between SMT-1 and SMT-2

It's more complicated than that. Although I would agree that if an LPAR has only a single zIIP, likely SMT would be a good idea. But B is not true for intervals that people usually consider when looking at utilization levels because at the level of dispatch intervals, it's much more likely

Re: Switching between SMT-1 and SMT-2

s have valid reasons to disable it. Scott Chapman On Thu, 31 Aug 2023 13:35:11 +, kekronbekron wrote: >Hi Scott, > >Could you expand on this please. > >> But z/OS "densely packs" the cores, meaning that if a work unit is running >> on a zIIP core an

Re: Switching between SMT-1 and SMT-2

r when we do the next upgrade". Which, to be fair, most customers are in that situation: they don't do any real detailed planning for zIIP capacity. Scott Chapman -- For IBM-MAIN subscribe / signoff / archive access instructio

Re: Switching between SMT-1 and SMT-2

Note you also must IPL PROCVIEW CORE (optionally append ,CPU_OK) in LOADxx before you can switch back and forth by the setting in IEAOPTxx. Scott Chapman -- For IBM-MAIN subscribe / signoff / archive access instructions, send

Re: Calculating SIIS% as MSUs or MIPS

ction LPAR) meaning that the net savings will be also relatively minor in the overall scheme of things. Scott Chapman -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the mes

Re: Question on use of LPARNAME, SYSNAME and SMFID

Having looked at data from a whole lot of customer systems, I can say that SMFID and SYSNAME are often (but not always) the same. LPARNAME is very often different, although I appreciate it when there's at least some sort of visual link between it and SMFID/SYSNAME. E.G. SYSA and C1SYSA vs SYSA

Re: Transmitting SMF records

Ah, I missed that or forgot by the time I got to posting. I haven't tried it myself, but have heard it is problematic to get the data back into a z/OS dataset in a usable fashion. On Sat, 17 Dec 2022 09:47:39 +1100, Andrew Rowley wrote: >The OP specified being able to reverse the process,

Re: Transmitting SMF records

SITE EPSV4 can be important for getting through some firewalls properly.) Scott Chapman On Thu, 15 Dec 2022 12:27:56 -0600, Paul Gilmartin wrote: >>From Barry Merrill : >>... >>But if the destination is for ASCII and SAS, you can use IEBGENER to create a >>copy of &g

Re: FYI: IBM sales jump shows the mainframe is not dead, with hybrid cloud alive and well | Network World

Which may be part of the reason for releasing the smaller version* of a particular generation some months after the larger version. * - The models formerly known as "Business Class" that are now seeking a handy name. On Thu, 20 Oct 2022 17:07:14 -0500, Mike Schwab wrote: >The big problem

Re: How to calculate MIPS or SU's from user CPU time statistics?

ainframe costs until they've moved off really significant amounts of workload. (Notice I didn't use the word "savings" in the previous sentence: whether the mainframe is cheaper or more expensive than the environment they're moving too is a yet deep

Re: Software drag racing

underperform. Scott Chapman -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN

Re: Java 8 (latest!) and TLSv1.3 - anyone got it working?

2026" and Java 11 until "at least October 2024". So given that 17 is potentially coming available in September, and given that I think the migration from 11 to 17 will likely be easier than 8 to 9+, I wouldn't be surprised if they just

Re: IBM Zcloud - is it just outsourcing ?

want to play with z/OS for a few hours, stand up a z/OS image with x CPU and y GB of disk and put it on my credit card". *-Remember: in the cloud, you pay for what you forgot to turn off. And those pennies can add up shockingly fast in some cases! Sco

Re: Low softcapping on high capacity CEC

Absolute CP capping caps the LPAR at the specified number of CP's worth of capacity. It avoids the issues with initial capping (by weight) in which LPAR A's available capacity can change when LPAR B or C is activated or deactivated if LPAR A's weight isn't readjusted too.

Re: Low softcapping on high capacity CEC

that SC has a resource group that limits how much CPU the work can consume. Scott Chapman -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN

Re: Querying WLM address space CPU delays

Alas no, but there's a number of products out there that will read said records, including our own. ;) Pivotor does have a free tier, but it's not open source. Scott Chapman -- For IBM-MAIN subscribe / signoff / archive

Re: Querying WLM address space CPU delays

how the work overall is performing and monitor for the work degrading over time. Monitoring the delay samples over time is one of the things I highly recommend, especially in the situations where you're always running at 100% busy or always running at cap or something like that. Scott Chapman

Re: zIIP MultiThreads

ses where that's impractical, MT=2 might be useful. Scott Chapman -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN

Re: Free Mainframe Stuff 2020: Reply Here with Nominations

free webinars as well. Scott Chapman -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN

Re: New Mainframe Community

of Edge is based on the open source version of Chrome under the covers. Some have suggested it would be better to have more diversity in the underlying browser technology, but Chromium generally is pretty good. Scott Chapman On Mon, 15 Jun 2020 10:46:13 -0400, Gord Tomlin wrote: >On 2020-06

Re: What is GRXBIMG

. Especially if they're performance advice. Scott Chapman On Wed, 3 Jun 2020 07:00:19 -0700, Charles Mills wrote: >I must have time on my hands. I just dragged out the OS/390 V2R8 CDs from >1999, and the sentence is there verbatim. > >It's the only hit on GRXBIMG on CD #1

Re: New Jersey Pleas for COBOL Coders for Mainframes Amid Coronavirus Pandemic

nments. But I would be surprised to find a case where COBOL isn't the most memory efficient. Scott Chapman -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN

Re: How do I compare CPU times on two machines?

l see potentially significant variations between runs of the same exact job. That's why I always want to see multiple re-runs so I can understand the "normal" variation. (But one still needs to take into account the current system activity: "normal" variation will itse

Re: How do I compare CPU times on two machines?

fer more significantly from expectation if you're just using one of the single-number metrics without regard to the RNI of the work and the LPAR configuration (factors that zPCR takes into account). Scott Chapman On Fri, 13 Dec 2019 20:55:54 -0500, Phil Smith III wrote: >I don'

Re: How display level of paging?

changed gets more interesting. If your performance reporting tool makes that onerous, remember that we (Enterprise Performance Strategies) do offer free cursory performance reviews and our performance reporting service does have a free tier as well. Contact me off-list if you're interested.

Re: How display level of paging?

ory were more likely to have paging space >= real storage. But even there, we've seen >1TB LPARs with with only a few hundred GB of paging space, including SCM. Of course it is also fairly common for those large memory systems to be running with large amounts of that memory being available

Re: Can you update WLM via a batch program?

should be a fine enough idea. But I'd check things closely the first few times at least. And I'd trust it more if it seemed to be valid XML. But at least from what I've seen by the time it gets downloaded, it's not quite

Re: Using bpxbatch to compress an MVS dataset

ite from DDs instead of file system files. I did so at my past job, but alas the source for that was left with the previous employer. Scott Chapman -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN

Re: honorpriority=no in WLM

On Wed, 19 Jun 2019 13:34:09 -0500, Horst Sinram wrote: >The OP's question was about DB2 workloads. Resource group capping for DB2 >workloads would be pretty risky unless you could really guarantee that you do >not share resources with your production work. > Although I haven't counted them

Re: honorpriority=no in WLM

>How about submitting a requirement to IBM that would add a control to WLM >This control would re-classify a ZIIP eligible workload to a different >service class if it spills over to a GCP because you are running your ZIIPS >hot (or hit the "generosity factor" for DB2 work). This service class

Re: honorpriority=no in WLM

True, relative to the zIIP workload. But if that zIIP workload is relatively low importance and crossing over to the GCPs and raising your R4HA, it may make sense to restrict the low importance work instead of increasing the R4HA, depending on what your business requirements are. And keeping

Re: SAP Processor Utilization

n 10% busy in the customers I sampled though, which matches my historical understanding that most customers don't have an issue with SAP capacity. Scott Chapman -- For IBM-MAIN subscribe / signoff / archive access instructions, send emai

Re: Effective of SMT with high zIIP usage

n for when you might want to try it. Go to https://www.pivotor.com and click on the "Free!" button then find and click through to our presentations. You probably can find it on a number of the conference web sites as I've presented it at the major conferences as well. Scott Chapman Ent

Re: What tools are available for z/OS programs to access a z/Linux database?

will be most performant. Scott Chapman -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN

Re: Internal Coupling Channel on z13

it. Note that my reluctance applies specifically to single-CP machines. If I had even two CPs, then I'd be much more willing to give it a shot, depending on current utilization levels and so forth. With dyndisp=thin of course. Scott Chapman On Wed, 30 Jan 2019 00:10:26 -0600, Brian Westerman

Re: Service class changes

Yup.. should be SMF30PF1 that "1" and "I" look pretty close at the font size I had up. Scott On Fri, 9 Nov 2018 07:16:03 -0600, Elardus Engelbrecht wrote: >Sorry, but is it not SMF30PF1 (number one instead of letter i)? --

Re: Service class changes

SMF30PFI includes flags indicating that the service class was changed either during or before execution. Scott Chapman Enterprise Performance Strategies On Thu, 8 Nov 2018 17:59:19 +, Sankaranarayanan, Vignesh wrote: >Hello list, > >Apart from 99.2, can I find info on serv

Re: I/O priority

be leading to WLM not being able to effectively manage certain service classes. Note again: this is something I'm still researching and I hope/expect to present on the topic at the next SHARE. Scott Chapman Enterprise Performance Strategies On Fri, 9 Nov 2018 04:52:01 +, Sankaranarayanan

Re: CPU Consuption on ZIIP - SMF / RMF

for reporting on those. Scott Chapman -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN

Re: Why are highly busy zIIPs worse than highly busy CPs?

cant as GCP capacity, so err on the side of having too much zIIP capacity. That would be an interesting study: what's common ratio of zIIP capacity to GCP capacity? I suspect that that ratio has been creeping up over the years. Scott Chapman -

Re: ZIIP engine utilization

to do a free cursory performance review. We often find "interesting" things during those reviews. See: https://www.pivotor.com/cursoryReview.html Scott Chapman -- For IBM-MAIN subscribe / signoff / archive access instruct

Re: IRS Assembler Java Big Plus Jobs

, primarily (I believe) due to I/O being slower. Scott Chapman On Thu, 19 Apr 2018 12:13:38 +0800, David Crayford <dcrayf...@gmail.com> wrote: > >I've yet to see a Java workload run faster on z/OS then on x86. And our >x86 servers are heavily virtualized using Hyper-V. Our zIIP ru

Re: Graph database on z/OS?

The default encoding on z/OS occasionally causes problems. Particularly when doing network I/O. Adding option "-Dfile.encoding=ISO8859-1" in my experience takes care of those issues. Of course you have to deal with ASCII files then, but that's a minor issue. Scott Chapman On Thu, 2

Re: Interesting - NODE for z/OS

You could also use the external Rhino Jars if you needed a version later than the embedded Rhino version. I remember being surprised several years ago at how well JavaScript (using Rhino) ran on z/OS. Scott Chapman On Fri, 23 Feb 2018 14:16:18 +0800, David Crayford <dcrayf...@gmail.com

Re: SMF advice on additional logstreams

tuning zFS performance, but I personally haven't spent any time yet investigating them. Scott Chapman On Thu, 8 Feb 2018 16:17:47 +, Allan Staller <allan.stal...@hcl.com> wrote: >Not sure about SMF92, but SMF99 are "WLM decision records". > >Yes they are l

Re: System z & Meltdown/Spectre

ing" AWS issues/limitations. It's been an "interesting" week. Hopefully this all will be less painful on z/OS. Scott Chapman On Wed, 10 Jan 2018 15:26:04 -0600, Tom Marchant <m42tom-ibmm...@yahoo.com> wrote: >On Wed, 10 Jan 2018 21:44:29 +0100, R.S. wrote: > >&g

Re: SAS - DB2 conversion to Java

of that might be. Obviously I might be slightly (although I hope not much) biased at this point, but I think the points are worth consideration. Scott Chapman www.pivotor.com On Wed, 29 Nov 2017 21:16:00 +1100, Andrew Rowley <and...@blackhillsoftware.com> wrote: >On 29/11/2017 11:5

Re: SAS - DB2 conversion to Java

option. Scott Chapman https://www.pivotor.com On Thu, 23 Nov 2017 09:04:40 +, Martin Packer <martin_pac...@uk.ibm.com> wrote: >When you say "planning to" I hope you really mean "beginning to consider". >There are just so many ways this could turn out to be a ba

Re: UTF-8 woes on z/OS, a solution - comments invited

k.java.net/jeps/254 The G1 garbage collector (which I believe will be the new default) will also get string deduplication: http://openjdk.java.net/jeps/192 Since those are internal JVM things, if those make will it into the IBM JVM I of course don't know.

Re: dumb VSAM KSDS & AIX question.

On Wed, 30 Aug 2017 22:27:52 +0100, David W Noon wrote: >> the keys. Yes, I know, if this sort of thing is a requirement, we need Db2 >> (or is it DB2), but that is _never_ going to happen around here. > >It is DB2. But that isn't really necessary. Except they

Re: Why buy / rent z for small users was Re: z/OS 2.3 announcement

n other platforms. Which also have way more mind share among the smaller/startup organizations. Scott Chapman -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN

Re: AW: BPXWDYN and AVGREC usage

the AVGREC allocation method 20+ years ago I probably knew the answer to your questions at one time, but the only one I remember for sure is that it works fine with SMS. Scott Chapman -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN

Re: SMS STORGRP question

age groups are added to the eligible list and evaluated the same regardless of which SG they're in. But I could be wrong about that. Scott Chapman -- For IBM-MAIN subscribe / signoff / archive access instructions, send emai

Re: UTC and Daylight Savings Time

in effect at the time that the change is made. " See PDF page 93, indicated page 75 in: http://www.redbooks.ibm.com/redbooks/pdfs/sg247281.pdf Scott Chapman -- For IBM-MAIN subscribe / signoff / archive access instr

Re: Why Can't You Buy z Mainframe Services from Amazon Cloud Services?

> I would point out that the cost to provide z/OS services, or any computing > services for that matter, is greater than zero, especially but not only for > "real production business work." If you'd like to suggest that any company > price its set of products and associated services below cost,

Re: Why Can't You Buy z Mainframe Services from Amazon Cloud Services?

I don't see anything there that says one can do real production business work using z/OS, starting at $0. Or $500. Or really any amount. Would be happy to be shown otherwise. On Thu, 8 Dec 2016 13:37:37 +0800, Timothy Sipples wrote: >Charles Mills asks: >>Is there any

Re: Why Can't You Buy z Mainframe Services from Amazon Cloud Services?

On Tue, 6 Dec 2016 13:54:27 -0500, Steve wrote: >If you look at the sheer cost if setting up a zOS ecosystem, its not cheap. Yeah, that's the key point not mentioned in the article: building your system on AWS starts at $0. However... AWS costs can add up too. Most of

Re: Watson

Since Alexa is mentioned... http://www.theverge.com/2016/11/4/13525172/amazon-alexa-big-mouth-billy-bass-hack-api -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the

Re: HV Common in SMF71.

These sound promising... SMF71C1A "Average total number of high virtual common memory pages (in units of 4 KB)." SMF71CPA "Average number of high virtual common pages in-use" The latter is apparently new in z/OS 2.2. Min and max fields available too. Scott On Wed, 28 Sep 2016 11:31:03

Re: 2FA in the Real World

Their purchase of EMC just closed, so I guess Dell now also makes mainframe disk subsystems. Will be interesting to see what they do with that. Scott On Tue, 13 Sep 2016 21:57:22 +0100, Vince Coen wrote: >Quest. > >Seem to recall some other m/f products as well. Toad ? >

Re: Bypassing s322

You can't really bypass the system exits, but that doesn't mean that the exits might not include certain "secret" triggers that might allow you to specify a higher time value on the job card. E.G. if the job is in this class and it's this time of day and this job name, then allow/set something

Re: System Automation Question

Nice. I had thought there was a physical dongle involved. The lack of such certainly makes things much easier. On Sun, 11 Sep 2016 10:55:28 -0400, Scott Ford <idfzos...@gmail.com> wrote: >zPDT versions > >On Sunday, September 11, 2016, Scott Chapman <scott.chap...@epstra

Re: System Automation Question

On Sat, 10 Sep 2016 13:12:37 -0400, Scott Ford wrote: >We have multiple z/OS images running in AWS ( Amazon ) and I have a Sorrry, I just have to ask: how do you have z/OS running in AWS?? -- For IBM-MAIN

Re: RD/z

On Wed, 31 Aug 2016 15:51:07 +0800, David Crayford wrote: >Is anybody outside of IBMs customers still using Eclipse? I was under >the impression that IntelliJ was the dominant force >in the fat IDE space now. And you get the same editor and user >experience no matter what

Re: WLM Question

it documented. It may be also possible to automate driving the ISPF application. Note that I haven't personally tried any of these. Scott Chapman -- For IBM-MAIN subscribe / signoff / archive access instructions, send email

Re: Resource Group Limits as a cost containment method?

Yes, resource groups might be able to help if you don't want to lower the DC itself. But it's very dependent on the situation. My impression from your discussion is that addressing the scheduling issues may be the best first step though. Remember that it's an average over 4 hours. So if you're

Re: Mirror/back up your Development DASD

In addition to the other reasons cited, one of my arguments was that I wasn't 100.00% sure that the app team hasn't squirreled something away in a non-production storage group that really was needed for either running or fixing or recovering production. And the chance for human error sneaking

Re: Java problem

On Sat, 7 May 2016 11:25:40 -0400, Phil Smith III wrote: >P.S. Scott, the same command still failed after -help was working. Do you >know what's wrong with it? Would love to grok this in fullness (well, "more >completely" -- I know I'll never grok in fullness!)

Re: Java problem

If my google-fu is good, max heap size default on z/OS for IBM Java 5 was 64M and on Java 6 it was increased to "half of real storage with a maximum of 512M". Min size also increased from 1M to 4M. Just to make sure that it's the heap size change between 5 and 6, did you try "javac -J-Xmx64M

Re: Storage Increment

The Technical Guide Redbooks for the relevant processor typically has this. Might be in the planning guide too. Looks like minimum granularity for the z13 is 512MB. Scott On Thu, 5 May 2016 22:52:19 -0400, phil yogendran wrote: >Thanks but where is that documented? How

Re: WLM issue with a proposed solution

>If your batch jobs are running Dicretionary at a DP lower than CICS, it is >very >unlikely that they are causing significant CICS delays. True from a CPU perspective. But the batch jobs could be locking resources in DB2 that are delaying the CICS transactions. And if the batch jobs holding

Re: WLM Resource Group Capping: Dispatching and un-dispatching

. If the current slice is a cap slice, the work unit is moved to the back of the queue (subject to priority order). Scott Chapman -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu

Re: Does everybody use chargeback?

>Scott Chapman wrote: >>Software billing is based on available/consumed capacity. > >IBM's is/are not. It's based on *peak* four hour rolling average >utilization per month -- or, effectively, per subscription year for >products that are not Monthly License Charge products. P

Re: Does everybody use chargeback?

I believe that while chargeback is an important issue that SMT messes up, that's already somewhat messed up today because there's more variance from execution to execution. I.E. run the same exact job twice and even absent SMT you'll get different CPU measurements. That's always been the case,

Re: Introducing the New z13s: Tim's Hardware Highlights

On Fri, 19 Feb 2016 18:16:53 +1100, Andrew Rowley wrote: >Memory leaks are not a usual case, but I would suggest you will still >want to garbage collect. > >I'm not arguing against large memory - I am all in favour of as much as >you can afford. It's just the

Re: Introducing the New z13s: Tim's Hardware Highlights

On Fri, 19 Feb 2016 08:56:17 +, Martin Packer wrote: >And if you think that's bad try making your favourite slide or email >editor keep the "z" lower case. Permanent nightmare. :-) Amen. But the Ctrl-z every time after you type it reinforces what platform you're

Re: Java (was: DFSORT - SMF Records - GMT To EST)

On Sat, 6 Feb 2016 16:02:52 -0600, Kirk Wolf wrote: >I doubt that there is a significant difference in CPU resources between >running the JVM in JZOS vs BPXBATC**. I was surprised too. >Perhaps the differences that you are seeing have to do with not measuring >all of the

Re: Java (was: DFSORT - SMF Records - GMT To EST)

d tasks too, which was unexpected. It was in the single digit percentage range, but it was consistent across multiple different workloads. I never did get that difference understood to my satisfaction. Scott Chapman -- For

Re: RMF monitor III panel restriction

The RMF Distributed Data Portal emits XML. So you can write your own app to issue requests to it and interpret the results--perhaps building friendlier html pages from a subset of values that are of interest to the target audience. You could either do that all in the browser (relatively easy)

Re: Any Git compliant Client for OMVS

read from the zFS needs to be in ASCII, but that's usually not too big of a deal--ISPF can edit ASCII ok, you just need to tell it that it's ASCII. (Although at the moment I can't remember exactly where/how that's done.) Scott Chapman On Fri, 18 Dec 2015 01:46:04 -0600, Munif Sadek <munif.sa

Re: SMF/RMF Reporting question

As others have said, there are multiple ways to go look at what was using the CPU during a particular interval, depending on what tools you have access to and what the system configuration is. To recap: SMF 30 interval (subtype 2 & 3) records will show CPU utilization by interval by address

Re: A New Perfromance Model ?

That is a very important point. I have been involved in more than one upgrade (or lack thereof) where we chose a less than technically ideal configuration because the MSU/MIPS of said configuration were somehow more favorable. Once though, the optimal technical and software cost solutions did

Re: Unload DB2 table in CSV format

I believe the DB2 Unload utility will also allow you to create an extract in a delimited form. Seems like there were some idiosyncrasies with it, but I don't recall the details at the moment. But you might start here:

Re: Consolidated LPAR monitoring solution

On Tue, 27 Jan 2015 14:24:01 +, Staller, Allan allan.stal...@kbmg.com wrote: Check out the GPMSERVE function of RMF (no additional $$$) I did exactly that at AEP, merging the data from multiple sysplexes into a single one pane of glass view. Everything passed between the LPARs/sysplexes

Re: z13 unanswered question.

On Fri, 16 Jan 2015 19:27:50 +0800, Timothy Sipples sipp...@sg.ibm.com wrote: Kees Vernooij wrote: It again looks like small customers are becoming less and less interesting for IBM. Your guess is 180 degrees wrong. I hope you're right. I believe there's a good number of sub-100 MSU customers

Re: DB2 query estimator (was: How Does Your Shop Limit Testing in the Production LPAR)

On Sat, 10 Jan 2015 14:40:19 +0100, Bernd Oppolzer bernd.oppol...@t-online.de wrote: for batch programs, a table space scan on large tables may well be the best access strategy, if the related SQL is the overall cursor controlling the batch program, and if large portions of the table is used. So

Re: DB2 query estimator (was: How Does Your Shop Limit Testing in the Production LPAR)

On Sat, 10 Jan 2015 01:44:35 +0100, Bernd Oppolzer bernd.oppol...@t-online.de wrote: It is normal practice at the shops I work to do EXPLAIN regularly on all programs that go into production and to store the PLAN TABLE results for later trouble shooting ... if there is trouble. The developers at

Re: How Does Your Shop Limit Testing in the Production LPAR

On Fri, 9 Jan 2015 09:58:03 -0500, Ted MacNEIL eamacn...@yahoo.ca wrote: I'm one of those types. The governor pretty well guarantees a re-submission. Which means twice the resources (or more) spent to do nothing! How can they debug/tune something if we don't let complete? That does seem to be a

Re: How Does Your Shop Limit Testing in the Production LPAR

On Thu, 8 Jan 2015 14:38:40 +, Martin Packer martin_pac...@uk.ibm.com wrote: Here your multitenancy concerns seem to be at the DB2 subsystem level. I don't think many would advocate sharing a DB2 subsystem between Prod and Test. Nor would I, but it happens. Especially for off-platform

Re: MIPS, CEC, LPARs, PRISM, WLM

) assigned capacity. That's where the resource group may be useful. Scott Chapman On Wed, 17 Dec 2014 23:40:18 -0500, Linda Hagedorn linda.haged...@gmail.com wrote: The bad SQL is usually tablespace scans, and/or Cartesian product. They are relatively easy to identify and cancel. MVS

Re: Death of spinning disk?

On Fri, 28 Nov 2014 16:14:03 +0800, Timothy Sipples sipp...@sg.ibm.com wrote: Setting aside current pricing, what are the characteristics of hard disks that make them better suited to particular use cases than (modern, current) SSD? You make a fair point that if pricing is not an object, then

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