We do have new mounts on almost every host now but those are not recognized by checkmk it seems.
As written in the topic title, these mounts are missing in the monitoring. Is there maybe a hidden setting that excludes these ‘/mnt/whatever’ somewhere?
The description of the behaviour is hidden in the manpage. It says:
One service is created for each filesystem which is not of the type tmpfs. The inventory uses the current mount options as check parameter. Note: the agent sends only filesystems which have a device below /dev, so network filesystems and virtual filesystems are excluded by the agent.
So maybe one of the restrictions apply to your filesystems?
Yeah, if it is just one mountpoint, then create some simple bash script with df command, like it is in official agent. And distribute it within agent using Agent Bakery (if you use it), if it is on many servers.