Hi, You need to remove the perfmon role on all nodes of the cluster that were monitored (incl. GUI nodes) and delete the perfmon config of the cluster (or the other way around, cannot check right now). The gpfs.gss.pmsensor RPM can then be removed from all nodes where it was installed (incl. GUI) and gpfs.gss.pmcollector from GUI servers.
HTH ________________________________ From: gpfsug-discuss <[email protected]> on behalf of Jonathan Buzzard <[email protected]> Sent: Sunday, February 8, 2026 12:06:18 PM To: [email protected] <[email protected]> Subject: [External] Re: [gpfsug-discuss] Removing GUI nodes On 07/02/2026 23:00, Jan-Frode Myklebust wrote: > mmperfmon config update --collectors othernode1,othernode2 > That just pushes the performance monitoring to other nodes. I am pretty sure prior to installing the GUI nodes I didn't have any "performance monitoring" and having never used it would like to get back to that state of affairs :-) [root@gpfs0 ~]# mmperfmon config delete --all mmperfmon: The performance monitoring configuration cannot be deleted while there are nodes designated for performance monitoring. Please remove the designation with mmchnode --noperfmon. mmperfmon: Command failed. Examine previous error messages to determine cause. Noting that I have already attempted to designate my one remaining performance monitoring node (aka GUI node) as not doing that with mmchnode which does not seem to do anything. Noting that the manpage for mmperfmon say for config delete --all removes the entire performance monitoring configuration from IBM Storage Scale. I have tried upgrading the GUI node to 5.2.3 to match the rest of the system, and running the mmchnode --noperfmon on the node itself with GPFS both started and stopped. None of that made any difference :-( At least I can run mmchconfig release=LATEST now. Interestingly mmlscluster shows the two DSS-G nodes as having a designation of "quorum-manager-perfmon" and the GUI node as having no designation. Noting the two DSS-G nodes don't have the pmcollector or pmsensors RPM's installed. I suspect I am going to need to open a ticket for this one as something wacky is going on. JAB. -- Jonathan A. Buzzard Tel: +44141-5483420 HPC System Administrator, ARCHIE-WeSt. University of Strathclyde, John Anderson Building, Glasgow. G4 0NG _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at gpfsug.org https://apc01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fgpfsug.org%2Fmailman%2Flistinfo%2Fgpfsug-discuss_gpfsug.org&data=05%7C02%7Cncalimet%40lenovo.com%7Cb509d9568ff940ac354b08de670262ce%7C5c7d0b28bdf8410caa934df372b16203%7C0%7C0%7C639061457179974771%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=fPtDlH1XDo0Z9BzSX4nHkq2dI9czuS7bWC5Xr4XUdwE%3D&reserved=0<http://gpfsug.org/mailman/listinfo/gpfsug-discuss_gpfsug.org>
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