Re: CTC (FCTC) usage [EXTERNAL]

Munif, maybe my original comments didn't make through the world of email servers. I don't think I've ever seen one doc that list all the things that can use CTCs. At our shop the real users of CTCs devices are XCF and VTAM. Those are the only tasks that have CTC device addresses defined to

Re: CTC (FCTC) usage

It's true that no one has answered the original basic question. I think that's largely because there is no single doc that lays out all application uses of (F)CTC any more than doc that lays out all application uses of DASD or tape. . . J.O.Skip Robinson Southern California Edison Company

Re: Just how secure are mainframes? | Trevor Eddolls

In response to "Since when does MODESET turn on the JSCBAUTH bit? Just how do you propose that IBM prevent key zero code from setting it? Why do think that turning on JSCBAUTH lets key zero code do anything that it couldn't do anyways? If the installation doesn't control what goes into its

Re: Fwd: Just how secure are mainframes? | Trevor Eddolls

Seymour, A specific example would help with this discussion. Do you have one? I will use a TSO ISPF application as my example. The assumption is that application security code is PSW KEY 8 problem state code (just like the application code). In fact, it could be CLIST or REXX execs as well.

Re: Fwd: Just how secure are mainframes? | Trevor Eddolls

In response to "What convention? The z/OS platform is (mostly) secure." z/OS is the most secure-able platform I know. However, a z/OS installation is only secure when the installation configures it correctly AND all programs running on the system do not violate the statement of integrity.

Re: BNDRY=PAGE possible CPU hit?

Week long AMODE 32 thread? Only a week on IBM main, I think. Wrong idea for sure. Running with 32 bit literals and AMODE 64 would work, but since address literals are such a small part of programs it does not make sense and I think would risk branching out of your 4GB memory area. The 380

ISPF Development Tips and Tricks package updated

The ISPF Development Tips and Tricks package has been updated to release 1.1 and is now available on my personal website at www.lbdsoftware.com for all to enjoy. This update incorporates several updates suggested by the readers of the initial 1.0 release. Both the

Re: Fwd: Just how secure are mainframes? | Trevor Eddolls

A user who front-ends an application is running with his own credentials; he doesn't have access to the production data. A user who simply logs on to the application canfront-end it. -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 From: IBM

Re: Fwd: Just how secure are mainframes? | Trevor Eddolls

What convention? The z/OS platform is (mostly) secure. If the user adds authorized code then it is no longer IBM's platform, and security vulnerabilities caused by not following the statement of integrity are vulnerabilities in the installation, not in z/OS. Now, when *IBM* fails to follow the

Re: Just how secure are mainframes? | Trevor Eddolls

> The security code path can be modified (if it is non-rent), frontended by > using content supervision functions (ex - task lib), or bypassed. Sure, a user can front end parts of the application, he won't have access to the production data. Of course, if installation management lets everybody

Re: BNDRY=PAGE possible CPU hit?

Thanks for all the responses on this one, especially Jim and Peter, and all the links. I unsubscribed from this list some months ago and re-subscribed last night, now realizing how much I might have missed (week-long AMODE32 threads notwithstanding) The info I initially received was from an

Re: BATCH JOB TO RUN GRS COMMAND

Thanks John. I will check out the SDSF option. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN

Re: BATCH JOB TO RUN GRS COMMAND

On Fri, May 31, 2019 at 11:50 AM Willie Bunter < 00ff0e22811f-dmarc-requ...@listserv.ua.edu> wrote: > I tried the job but nothing was displayed. > > Most likely your shop is set up to disallow issuing commands that way. I had another thought. But I don't have any example code. But you can

Re: BATCH JOB TO RUN GRS COMMAND

I tried the job but nothing was displayed. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN

Re: BATCH JOB TO RUN GRS COMMAND

On Fri, May 31, 2019 at 11:33 AM willie bunter < 001409bd2345-dmarc-requ...@listserv.ua.edu> wrote: > Hallo All, > Would anybody have an example to run the GRS command for the following > dsn via a batch job : > DGRS,RES=(*,SYS1.LINKLIB) > Thanks in advance > > This worked for me on my

BATCH JOB TO RUN GRS COMMAND

Hallo All, Would anybody have an example to run the GRS command for the following dsn  via a batch job :  DGRS,RES=(*,SYS1.LINKLIB) Thanks in advance -- For IBM-MAIN subscribe / signoff / archive access instructions, send email

Re: CTC (FCTC) usage

Thanks a lot for so many replies. My basic question still remains the same..where all CTC(FCTC) can be used under zOS and all required configurations. Do agree HCD/IOCP is very well documented but not the applications, VTAM, IP configurations. regards Munif

Re: How to delete and allocate files in bpxbatch

On Fri, 31 May 2019 08:26:50 -0400, Billy Ashton wrote: >Hi John, I am getting ready to go away for a few days, and when I get back >I will give you a mockup of my workflow so you can see what's what. Thanks >for helping! > Thoughts on this: Might your dangling ENQ (EDC5061I) occur because you

SAP Processor Utilization

Is there a way, a tool, etc. to measure "historical" SAP utilization? We are aware of the real time Monitor Dashboard's various displays on the HMC. Bob -- For IBM-MAIN subscribe / signoff / archive access instructions, send

Re: ads on Knowledge Center?

Susan Shumway wrote: >Yikes, thanks for the notice! We alerted the KC folks and they confirmed that >it's a glitch with DISQUS. They disabled the functionality until a fix is >found. Thanks Susan! Much appreciated. I did not have time to check why my browsers are different (showing ads or

Re: BNDRY=PAGE possible CPU hit?

Expanding the ... leads one to (there might be more, but this is the one I found): https://www.ibm.com/developerworks/community/files/form/anonymous/api/library/ff4563be-756e-49bf-9de9-6a04a08026f1/document/07c69512-ac74-4394-87b9-a61ea201347e/media/IBMzSystemsProcessorOptimizationPrimerv2.pdf

Re: BNDRY=PAGE possible CPU hit?

On Fri, May 31, 2019 at 9:30 AM Jim Mulder wrote: > See page 31 in this document: > > https://www.ibm.com/.../IBMzSystemsProcessorOptimizationPrimerv2.pdf > I got a 404 on that page. What is supposed to be in the /.../ portion? That link, for me in Gmail, is actually "/.../" But I got the pdf

Re: [External] Re: ads on Knowledge Center?

Thank you Sue. Much appreciated!! Ronald Kristel From: IBM Mainframe Discussion List on behalf of Pommier, Rex Sent: Friday, May 31, 2019 4:14:50 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: [External] Re: ads on Knowledge Center? Thanks, Sue, for all you do

Re: BNDRY=PAGE possible CPU hit?

See page 31 in this document: https://www.ibm.com/.../IBMzSystemsProcessorOptimizationPrimerv2.pdf Whether use of the near-memory engine helps or hurts your performance depends on how/when you were using the storage before the MVCL/MVCLE, and how/when you use it after the MVCL/MVCLE. Jim

Re: [External] Re: ads on Knowledge Center?

Thanks, Sue, for all you do to keep the documentation usable. :-) Rex -Original Message- From: IBM Mainframe Discussion List On Behalf Of Susan Shumway Sent: Friday, May 31, 2019 8:28 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: [External] Re: ads on Knowledge Center? Hi all, Yikes,

Re: BNDRY=PAGE possible CPU hit?

My thought was that perhaps the STORAGE OBTAIN or GETMAIN on a page boundary might be more expensive than a non-aligned one. If the OP were doing that repeatedly it might matter. But I might be talking twaddle. :-) Martin Packer zChampion, Systems Investigator & Performance Troubleshooter,

Re: BNDRY=PAGE possible CPU hit?

If you add BNDRY=PAGE to every obtain regardless of size you likely waste storage. VSM would not be able to satisfy multiple requests from the same page, for example. Wasting storage can translate to worse performance in a lot of ways. I seem to recall that MVCLE is not a good performance

Re: ads on Knowledge Center?

Hi all, Yikes, thanks for the notice! We alerted the KC folks and they confirmed that it's a glitch with DISQUS. They disabled the functionality until a fix is found. Unfortunately, you'll now need to look elsewhere if you want links to learn how to "Forget Your 401K if you Own a Home (Do

Re: RSUs

On 5/30/2019 11:32 AM, Styles, Andy , ITS zPlatform Services wrote: Not exactly. It is a set of PTFs that have been extensively tested together by IBM. Then they have been adopted as a whole by many shops. Is that true? I thought it was just the CST that was extensively tested; that's only

RMM Retention Method(EXPDT)

I'm wondering if any of you are currently using the RMM retention method(expdt)? We are using it on one system and looking at implementing it on all of our systems running RMM now that we are z/OS 2.3. If you are using it can you share your experiences or issues you ran into migrating to

Re: How to delete and allocate files in bpxbatch

On Fri, May 31, 2019 at 7:27 AM Billy Ashton wrote: > Hi John, I am getting ready to go away for a few days, and when I get back > I will give you a mockup of my workflow so you can see what's what. Thanks > for helping! > Hope you have fun while away. I am not currently busy, so having

Re: How to delete and allocate files in bpxbatch

Hi John, I am getting ready to go away for a few days, and when I get back I will give you a mockup of my workflow so you can see what's what. Thanks for helping! Billy On Wed, May 29, 2019 at 10:58 AM John McKown wrote: > On Wed, May 29, 2019 at 8:38 AM Billy Ashton > wrote: > > > John,

Re: ads on Knowledge Center?

Yes, I'm seeing it too, I hate seeing the direction IBM continues to move in. On Fri, May 31, 2019 at 3:59 AM Ronald Kristel wrote: > Hi, > > Is anyone else also getting ads in Knowledge Center? > > >

Re: BNDRY=PAGE possible CPU hit?

On Thu, 30 May 2019 22:12:13 -0500 Michael Hochee wrote: :>I recently added the BNDRY=PAGE parameter to a set of STORAGE OBTAINS which acquire storage areas of various sizes from several low private subpools. My intent was a reduction of CPU used by subsequent MVCLE instructions, as ADM

ads on Knowledge Center?

Hi, Is anyone else also getting ads in Knowledge Center? https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.3.0/com.ibm.zos.v2r3.adru000/r2321.htm This page for example shows a dozen ads that seems to be part of the DISQUS/forum plugin at the bottom of the page. Ronald Kristel