Check the storage manager in the QTS web administration.
There should be an “External devices” tab on the left side.
Your SSD should be listed there.
Shared folders can only be created on internal volumes. External volumes can only be shared as a whole. In this case you have to initialize/format the disk (preferably with ext4 filesystem) in the QTS and name it “RoonServer”.
(All data on this usb-drive be erased during this process!!)
