That’s exactly what I want to know because I don’t understand something.
With my NAS, if I follow the official doc, the OID to check Disk usage is 1.3.6.1.4.1.6574.3.4 (even if I don’t understand).
But, it seems that this OID is not implemented in my NAS… but checkmk correctly view used space…
So I don’t understand how it could do this…