Has to match how it's defined in the order above.
@@ -53,7 +53,7 @@ tztime local {
format = "%Y-%m-%d %H:%M"
}
-disk "/var/lib/libvirt/images/" {
+disk "/var/lib/libvirt/images" {
format = "virt:%avail"
threshold_type = "gbytes_avail"
low_threshold = 2