We're in the software developmental business and one of our customers reported a problem when 100 WLM service classes were defined and active. We needed to reproduce their environment to test a fix. Once I read the advice "don't do it", I used one of our stand-alone z/OS systems to model the customers environment so as not to impact other activities in our main sysplex.
Mark Jacobs Sent from ProtonMail, Swiss-based encrypted email. GPG Public Key - https://api.protonmail.ch/pks/lookup?op=get&[email protected] ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ On Tuesday, February 16th, 2021 at 9:38 AM, Martin Packer <[email protected]> wrote: > We normally put it this way: > > Too many ACTIVE service class periods with too little work in each of them > > makes it difficult for WLM to be helpful. > > Cheers, Martin > > Martin Packer > > Systems Investigator & Performance Troubleshooter, IBM > > +44-7802-245-584 > > email: [email protected] > > Twitter / Facebook IDs: MartinPacker > > Blog: https://mainframeperformancetopics.com > > Mainframe, Performance, Topics Podcast Series (With Marna Walle): > > https://anchor.fm/marna-walle > > Youtube channel: https://www.youtube.com/channel/UCu_65HaYgksbF6Q8SQ4oOvA > > From: "Edgington, Jerry" [email protected] > > To: [email protected] > > Date: 16/02/2021 13:21 > > Subject: [EXTERNAL] Re: WLM Service Classes > > Sent by: IBM Mainframe Discussion List [email protected] > > Mark, > > IBM recommends < 30 Service Classes. WLM has a limited amount of time to > > cycle through the WLM service classes, and if > 30 service classes, IBM > > says WLM can't complete it in time. > > Jerry > > -----Original Message----- > > From: IBM Mainframe Discussion List [email protected] On Behalf > > Of Mark Jacobs > > Sent: Tuesday, February 16, 2021 8:17 AM > > To: [email protected] > > Subject: WLM Service Classes > > This message was sent from an external source outside of Western & > > Southern's network. Do not click links or open attachments unless you > > recognize the sender and know the contents are safe. > > I seem to recall that there's a recommendation not to exceed a certain > > number of defined WLM service classes for reasons. Is my recollection > > correct? > > Mark Jacobs > > Sent from ProtonMail, Swiss-based encrypted email. > > GPG Public Key - > > https://api.protonmail.ch/pks/lookup?op=get&[email protected] > > > ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, send email > > to [email protected] with the message: INFO IBM-MAIN > > ---------------------------------------------------------------------------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, > > send email to [email protected] with the message: INFO IBM-MAIN > > Unless stated otherwise above: > > IBM United Kingdom Limited - Registered in England and Wales with number > > 741598. > > Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU > > > ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, > > send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
