Rack supports equipment's redundancy
The redundancy planned for the rack supports adding the selected equipment.
The rack allows for better redundancy utilization than the selected equipment is designed for.
If you add the selected equipment to this rack, you will not be utilizing the available redundancy to the optimum.
The selected equipment requires better redundancy setup than is available according to the redundancy setup for the rack.
You may need to select a different piece of equipment requiring less redundancy and add to this rack.