Adding node in teradata appliance

General

Adding node in teradata appliance

Dear Sir/mam,

Our company has just started to use teradata appliances. We have 1 cabinet with 2 node of memory &  1/4 disk that will be used for development environment.

however we need another environment with 4 node & half disk.

is it possible the additional 4-node & half disk in same cabinet? should the cabinet be configured to have 6 nodes from the beginning? If yes, how do we check it?

is there anything that we should consider? 

If there is any posting similar to this, just inform us & really appreciate for any replies.

thank you.