I was trying to create another table and specify a data space, when I couldn't avoid noticing these weird elements on the list:
The thing is, I didn't create them. My storages are "PRIMARY" and "HDD_GROUP".
How did these appear? My googling skills are failing me, but that is a topic is not for today's jedi consult.
How are they used? Where are they located? What happens if I delete them?