I have a server running FreeNAS. It has a built in RAID card that is currently running 4 disks in RAID 10.
I have a LibreNMS server that uses SNMP to monitor all our network, virtual OSes, and physical machines. I just noticed that when monitoring a FreeNAS machine it does not show disk usage. Not even the OS that is running off a USB stick.
Is this just FreeNAS thing? If so how do you monitor your disk usage to know when disks are becoming full?