I believe that you should be able to go to the data/rrd/machinename directory and just remove the rrd file for the info you want to purge. 

Thanks,
Matt


On Tue, Nov 18, 2025 at 11:45 AM Randall Badilla Castro via Xymon <xymon@xymon.com> wrote:
Hi Josh, currently we didn't delete the old data... I'm not the owner of the xymon system also by company rules  I should justify the deletion of that data.  Besides that: I'm assuming that CPU downgrade requires special handling. 

General question can we delete specific data from a host. For example, can we delete all CPU related data from this specific server and still have the disk, network and other monitored data. Like a specific reset.. Or is a all or nothing treatment?  





________________________________________
From: Josh Luthman <josh@imaginenetworksllc.com>
Sent: Tuesday, November 18, 2025 10:28
To: Xymon mailinglist <xymon@xymon.com>
Cc: Randall Badilla Castro <randall.badillacastro@libertycr.com>
Subject: [EXT] Re: [Xymon] will Xymon 4.3.30 handle automatically CPU downgrades?


You don't often get email from josh@imaginenetworksllc.com. Learn why this is important
⚠️️This message was sent from someone outside the company. BE CAREFUL with links or attachments.
⚠️️Este mensaje fue enviado por alguien ajeno a la empresa. TENGA CUIDADO con los enlaces o archivos adjuntos.
Delete the old data for that host?

On Tue, Nov 18, 2025 at 11:13 AM Randall Badilla Castro via Xymon <xymon@xymon.com> wrote:
Hi people: we use Xymon 4.3.30 and I believe had issues when vms are downgrade on the CPU quantity. For example one vms was 12 CPUs and month ago we re-shape it to 2 CPUs (same RAM).
But the realCPU stats sometime show and Y axis of 120%... For example today got red alarm by realCPU on 95% and the graph show a Y axis of 120%.
Should we make some adjustments or issue some command to correct this ?

Any input will really appreciate it. I don't know if this helps but; this example is running redhat 8.6 on Oracle OCI cloud.

 cat /etc/*release
NAME="Red Hat Enterprise Linux"
VERSION="8.6 (Ootpa)"
ID="rhel"
ID_LIKE="fedora"
VERSION_ID="8.6"
PLATFORM_ID="platform:el8"
PRETTY_NAME="Red Hat Enterprise Linux 8.6 (Ootpa)"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:redhat:enterprise_linux:8::baseos"
HOME_URL="https://www.redhat.com/"
DOCUMENTATION_URL="https://access.redhat.com/documentation/red_hat_enterprise_linux/8/"
BUG_REPORT_URL="https://bugzilla.redhat.com/"

REDHAT_BUGZILLA_PRODUCT="Red Hat Enterprise Linux 8"
REDHAT_BUGZILLA_PRODUCT_VERSION=8.6
REDHAT_SUPPORT_PRODUCT="Red Hat Enterprise Linux"
REDHAT_SUPPORT_PRODUCT_VERSION="8.6"
Red Hat Enterprise Linux release 8.6 (Ootpa)
Red Hat Enterprise Linux release 8.6 (Ootpa)



--
Quedamos atentos a vuestra amable retroalimentación y/u observaciones.

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--
Matthew Goebel : mgoebel@emich.edu : Unix Jockey @ EMU : Hail Eris
Neo-Student, Net Lurker, Donut consumer, and procrastinating medher...
 "Always with the negative waves, Moriarty" - Oddball
 "Comfort the troubled, and trouble the comfortable." - Dietrich Bonhoeffer