Cisco MDS 9148S switches are Fibre Channel switches with 48 ports. 24 of the ports are active per switch. A pair of Cisco MDS 9148S switches can connect up to 16 HCP systems and up to 16 storage array ports.
Cisco MDS 9148S switches are 1U switches. An HCP system comes with two Cisco MDS 9148S switches per rack. Each switch takes up one rack unit. The switches should be mounted in rack units 25 and 26.