We are seeing storage value discrepancies on our Linux servers as compared to APM.
For example, we have a Linux server (v8.9) running agent version 2023.8.1.6. the /dev/mapper/rhel-homelv filesystem is currently 100% utilized but APM is reporting it as only being 94% utilized.
Root accounts sees an extra 5% that non-root can't see:
The % is % available to normal users. You can change the reserved percentage with tune2fs -m .