I was not aware I could connect it the other way. This is my first foray into Unraid (well, really any true server) and one of SpaceInvader's videos talked about adding it as an unassigned device.
I did get it to work. As you noted, I had sharing permissions wrong on the other side. It is awfully slow though.
I will explore the other option.
Appreciate the feedback. This has been quite a learning experience for a non-tech person.