MyBook Duo Question

Hey guys I just wanted to ask a quick question. I am thinking about ordering the 12tb Duo drive, but I wanted to make sure I can do a couple things.

Firstly, I want the drive strictly for storage. I don’t need performance or redundancy. I just want 12TB of storage. That being said, I saw that the drive offers Raid 0 and JBOD.

If I choose raid 0, the date is spread accross both drives, so if 1 dies, I lose everything right?

And also in JBOD, the drives will populate until one is full then move on to the next right? So there should be a way to view what is on the one 6tb drive independent of the other right?

Is there any way to just use the drive as a dual disk enclosure? Like just have both drives function independently? So I can choose what goes onto one drive and what goes onto the other? This seems like the only function I want/need. I know I could buy two different 6tb drives, but I would rather have one enclosure to save space.