Rack diagrams. what exactly are they? In a nutshell, a rack diagram (aka visual layouts show detailed rack elevations) is a graphical representation of your network's rack or cabinets. You can see all the equipment within a rack, includin. Rack diagrams. what exactly are they? In a nutshell, a rack diagram (aka visual layouts show detailed rack elevations) is a graphical representation of your network's rack or cabinets. You can see all the equipment within a rack, including adding a rack unit that indicate the space each piece of equipment occupies as you expand. They help you track. Rack diagrams are often called 'server rack diagrams'.Why? Servers are the main pieces of equipment in a rack, but for organizations documenting infrastructure, there's more equipment that should be included in server diagrams, like switches, routers, and patch panels. 1. Switches are devices in a computer network that connects other devices togeth. Are you thinking: “Ok, but I can create rack diagrams in Visio. so why do I need DCIM to visualize rack diagrams?' If you're happy with what you're using (and it meets your needs), by all means: don't switch. I'm not knocking it. If, however, you need a tool to help manage your capacity, space, power, and weight, with dashboard reports, list of all. Rack diagrams are usually drawn in a 2D elevation drawing showing the specific equipment on a rack and may include the front and the rear elevation of the rack layout (see below) for one rack or multiple ones. Example of a 2D rack elevation diagram I get this question a lot: 'does netTerrain offer 3D views of rack diagrams?' netTerrain doesn't offe. Having a visual representation of your IT equipment, both your server and network equipment, inside your data center or telecom rooms is essential in optimizing your network and data center. IT documentation, of course, goes beyond just rack visuals. Other areas that could benefit from documentation include: 1. Network topology 2. Cloud architectur.