Yes, that is a 2-post rack. Yes, you will need to find 2-post rails for both of your servers. Since you will be using Tripp Lite rack I would suggest Dell versa rails. Versa rail is compatible for 2-post and 4-post racks. Bottom line, get either 2-post rail or versa rail for the servers for your 2-post rack. Let us know how it goes.
I have 2 Dell PowerEdge machines and I would like to add them to a rack. I'm confused on what type of rack I need to mount these. If I want to use the rails, do I need a special Dell cabinet? I was thinking about just buying a 2 post 25U open frame rack and mounting them and my other hardware on that. Would I have to have the rails for each poweredge for this to work? Or could I just set them on the bottom and then screw in the threaded screws thumb screws into the rack? I don't really care if the servers can slide out. Do I have to have the rails to mount them in any kind of a rack or just ones that are designed to have the servers slide out?
Adding Dell PowerEdge Servers to a Rack