We have several servers connected to PRTG, one of it has many internal drives and volumes (HDD, Flash, Hybrid), to control free space of this volumes we use Disk Free (Multi Disk) sensor. This sensor use channels to calculate and display volume size. But we come across with problem when one of our volume MUST be full by default (out of free space) permanently. In this case all sensor goes to error state and no any way we found to fichange it. We can't delete channel and can't change limits to it. Only way we found is to use separate sensor to control every internal HDD's. Is there other way?