* Chuck Anderson > The point is that the switches need to be removable without empty > space above/below, and ideally from the rear side of the rack. By > having extending/sliding rails, you can lift out or drop in the switch > after you slide it out. Then you can remove the rails. > > With fixed rails, you can't get the switch out without bending the ear > part of the rails when there are PDUs and other stuff in the way.
Not necessarily. Even sliding rails must be constructed in a way that facilitates removal through the cold aisle side of the rack. That's not a given. One example of sliding rails that unfortunately do *not* allow for removal that way is the Edge-Core RKIT-100G-SLIDE: https://www.redpill-linpro.com/techblog/2020/01/17/new-routers.html (Ctrl+F Bonus) Tore
