Hi Noris,
Thanks very much for getting back to me
there is something strange with how Roon now talks to this drive, its been fine but something has gone wrong.
Ive reformatted the drive and tested it with writing and erasing files etc, and Ive reformatted. Its seems to respond fine to other interactions outside of Roon. Ive done as asked and created a subfolder. When I point Roon to that, I get the following (screenshot)
When I change location to just RoonCore, I get the server operating, but only showing 16mb of capacity.
I was worried the drive had failed, but given it reads and writes ok it seems, and the NAS can reformat without problems then I thought the drive probably ok.