07-29-2016 07:44 AM
A Fibre Channel switch is often called a 'pizza box' switch. It's a single chassis, rack-mountable, usually 1-3U high unit. Also called a 'departmental' switch. It will have as few as 16 ports, and as many as 80 ports on the front and one or more power supply fan units on the back.
A Fibre Channel director is a large backplane chassis with slots on the front which take various FC, FCIP, FCOE, encryption, Core or CP blades. Each user blade will have from 16 to 64 ports on the front, and they slide into the director chassis. Fans make up the rear, and they are user replaceable. Brocade often calls them 'Backbone' rather than more traditional 'director'.
08-05-2016 08:05 AM
Directors are high availability and high scalability devices.