Dear sir:

I just read the all-in-one bare metal installing guide "https://docs.starlingx.io/deploy_install_guides/r3_release/bare_metal/aio_simplex_hardware.html", and also I have 3 questions.

1.)  the "Primary disk" part says that we need 500G SDD, does that misspell with SSD? 
2.)  Can just a simple 500G HDD work?
3.)  Now I just have one huge disk which is 5TB, can I install stx on that? Do I have to modify sth or Can I just do partition after installing the bootimage?