Re: Is there a mathematician in the house?

https://en.wikipedia.org/wiki/Euler%27s_totient_function Sent from my iPad > On 23 Aug 2022, at 23:45, Bob Bridges wrote: > > Comment from another knowledgeable cove: > > "In number theory, Euler's totient function counts the positive integers up > to a given integer n that are relatively pr

Re: Defining a new Class in JES

It depends. Do you have some sort of WRITER or SYSOUT Archival tool or product sweeping output of certain (or all) classes or jobs? SAR, RMDS, products like that. On Wed, Aug 24, 2022 at 11:20 PM Peter wrote: > Hello > > I am trying to understand if it is possible to define a new JES class whi

Re: How to use LISTDSI from Rexx under Unix shell?

Off the top of my head, you might also look at the catalog search interface. Examples in SYS1.SAMPLIB I believe. On Wed, Aug 24, 2022 at 10:47 PM Farley, Peter x23353 < 031df298a9da-dmarc-requ...@listserv.ua.edu> wrote: > Posted earlier today on MVS-OE but got no responses there. > > I know

Re: How to use LISTDSI from Rexx under Unix shell?

You might wish try executing the "catsearch" shell command from Rexx, which is part of the Co:Z Toolkit. This uses IGGCSI00, along with other services to obtain DSCB information. https://coztoolkit.com/docs/zos-utilities/dsp-ref_catsearch.html > catsearch -l user.coz.**

Re: How to use LISTDSI from Rexx under Unix shell?

The current environment shouldn't matter, What is the output from Sample code to get LISTDSI information on 'profilename.EXEC': /* Rexx */ trace i Myrc = LISTDSI('EXEC') Say 'RC='Myrc',reason='SYSREASON Do the results change if you fully qualify the name? -- Shmuel (Seymour J.) Metz http://m

Modern DASD benchmark testing

I have been asked for ideas in regards to DASD benchmark testing. We would like to compare IBM DS88xx's against competitors. Something that would generate statistics for I/O rate, response time, and exercise track change rate (replication performance). Something free of course. Thanks in advanc

Re: Modern DASD benchmark testing

IIRC - the RMF/SMF record type 74-5 can you provide the I/O rates, Cache Statistics.etc https://www.ibm.com/servers/resourcelink/svc00100.nsf/pages/zOSV2R4sc342664?OpenDocument Carmen On 8/25/2022 12:11 PM, rpinion865 wrote: I have been asked for ideas in regards to DASD benchmark test

Re: Modern DASD benchmark testing

Not so much as to where to find the statistics. Rather, a set of benchmarks to produce the statistics. Thanks. Sent with Proton Mail secure email. --- Original Message --- On Thursday, August 25th, 2022 at 1:16 PM, Carmen Vitullo wrote: > IIRC - the RMF/SMF record type 74-5 can

Re: Modern DASD benchmark testing

got ya, so sorry, It's been so many years since I've done any kind of benchmark, we used a tool back in the day that generated data, then read that data back over and over, the problem today, is I don't think there's so much control over the DASD subsystem as there was when I was benchmark spin

realtime monitoring of various storage subpools

All, is there another method to monitor subpool usage for a specific address space besides Omegamon? I realize I could take periodic console dumps and look, but looking for other methods out of the box. We have a rogue address space with a memory leak, and wanting to track storage growth (o

Re: Modern DASD benchmark testing [EXTERNAL]

Well depending on how technical you want to get. You could write some code to write/read data and then look at the RMF records. I created some code to do that using VSAM KSDS. A poor persons benchmark software. I did not go as far as Carmen around turning stuff off/on. I would run the jobs

Re: realtime monitoring of various storage subpools [EXTERNAL]

Dave, if you want to sit there and hit enter to watch things you could try SDSF (zOS 2.4) panel AS and subcommand JM. See if that is what you are looking for. The Address Space Memory (AS) panel allows authorized users to display the storage utilization of address spaces in the sysplex

Re: Modern DASD benchmark testing [EXTERNAL]

+1 for Paul's response, IIRC I did use the SMF dump program at one time to copy SMF data, the SMF data for me was a good choice because you can count on the data to have tons of records, good point to turn off zHPF, run the test multiple times, your first run will prolly have the best stats sin

Re: realtime monitoring of various storage subpools

Hi Dave, Have you looked at GFS Trace? Please see: GETMAIN, FREEMAIN, STORAGE (GFS) trace - IBM Documentation Regards, David On 2022-08-25 13:37, Dave Jousma wrote: All, is there another method to monitor s

Re: How to use LISTDSI from Rexx under Unix shell?

Results under TSO/ISPF: 3 *-* address TSO 4 *-* Myrc = LISTDSI("'TSOUSER.EXEC'") >L> "'TSOUSER.EXEC'" >F> "0" 5 *-* Say 'RC='Myrc',reason='SYSREASON >L> "RC="

Re: Modern DASD benchmark testing

Ideally you'd run all your ordinary workloads but in a stress testing way, with simulated demand, ordinary concurrent batch runs, and valid test data. And then dial up the stress to +50% (for example) above your prior peak if you want to see that. Simulated demand implies you'd have a load gene

Re: How to use LISTDSI from Rexx under Unix shell?

See https://www.ibm.com/docs/en/zos/2.4.0?topic=environment-examples Use your OMVS Rexx to Address TSO 'exec (mydsi)' your working code and outtrap to work with the results. -- For IBM-MAIN subscribe / signoff / archive access i

Re: realtime monitoring of various storage subpools

I'm very fond of the new stuff in SDSF with z/OS 2.5 . -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN