Examples disclosed herein relate to determining a loop set identifying ports of a routing module connected in a storage fabric loop. Examples include discovering at least a portion of a topology of a storage fabric comprising the routing module and a storage fabric loop including the routing module, determining a loop set identifying a plurality of ports of the routing module that are connected in the storage fabric loop, selecting one of the ports identified in the loop set, and indicating to a storage controller that no storage fabric component is connected to the routing module via the selected port.