I’m facing some hoping is minor issue during replication via USB connected disk.
I didn’t notice this before (with 13.0) and i think something change with 13.3 or im missing something obvious.
Started after have destroied my prevoius pool, and after have replicated data from USB (no more sata available 
). All goes fine, i exported the USB pool and disconnect the disk… But he not disappear from GUI; checking via cli he didn’t appear nowhere else.
Today i connect another different disk, for perform another different task, but seems he didn’t appear in GUI: i realised later checking via cli that this ghost disk now coincides with the new disk… So i try to create a pool and despite in creation phase the storage capacity appear wrong, at the end the pool seems correct; i also end my replication without issue.
Now i disconnect the pool but didn’t already disconnect the disk… Should i do something else before? Or i have to keep this “Ghost” disk everytime i do this action and i not reboot server?
Please God i Need your help 