Proxmox VE VM Backup Status - Problem

Troubleshooting
1

Hi,
I have a strange behavior with the Proxmox VE special agent when it comes to the Backup Status check.

In general the Proxmox VE special agent is working fine, including the Backup Status check. However after about 14 days I get this error message.

Capture1
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If I look in Proxmox the backup is there. I am using a Proxmox Backup Server (PBS).

ProxmoxGUI
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I have scheduled my Proxmox backups to be performed once per month.

And as seen in this picture the Checkmk check can find those backups just fine. But for some reason only for 14 days

repeat
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If I manually take a backup now the Proxmox VE agent will find it and the service will become green.

I guess I could schedule my backups to run more often… but anyone have any idea about this behavior?

CMK version: 2.3.0p17.cee
OS version: Ubuntu 24.04.2 LTS

2

To get information about the backups the Proxmox special agent has to read logs via the Proxmox API. There is no Proxmox API to query backup info.
The default cutoff is 2 weeks because this really takes a long time.

You can change this in the configuration of the Proxmox agent (“Maximum log age”).

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