HP Surestore 64 - Director Switch Installation Manual page 30

Overview
Depending on device connections, G_Ports work as follows:
Figure 2
UPM
Figure 2: UPM card LEDs and connectors
30
If the G_Port is attached to a Fibre Channel device, the port functions as a
fabric port (F_Port). An F_Port is the interface on a director that connects to a
device N_Port.
If the G_Port is attached to another director to form an Interswitch Link (ISL),
the port functions as an expansion port (E_Port). A multi-switch fabric is
formed through multiple directors and ISLs.
shows the faceplate of an UPM.
1
2
1
2
3
3
Card LED
Port LEDs
Port Connectors
(G_Ports)
Director 2/64 Installation Guide