this is the reason why (ideally) you should have three racks in a redundant setup: 2 for redundant component placement (with redundant power obviously). 1 for

this is the reason why (ideally) you should have three racks in a redundant setup: 2 for redundant component placement (with redundant power obviously). 1 for interconnections between the racks, having prepared cabling and MPO panels installed to make interconecting devices easily, without having to change anything in the equipment racks compared or vice versa. Makes replacing hardware a breeze, and prevents a lot of issues with cable mess inside equipment racks because those cables are very short to MPO panels.