Only 2 TB with 6x 1 tb drives (raid5)

[Robbie]

Thank you. I'm still a little confused as to the 4.53 available space, and how exactly i format 2 arrays.
Will I need to to start again again from the setup panel to create one more array or can I simply add another to the existing 2.1tb.

[To-M]

From the NAS side you would add it to the existing Volume Group or VG00