Introduction
Fibre Channel ports and LEDs
The switch has eight Fibre Channel ports, numbered 0–7. (Figure 4)
Each Fibre Channel port is served by a 2 Gbps Small Form-Factor Pluggable (SFP) optical transceiver. SFPs are hot-pluggable. User ports self-discover both the port type and transmission speed of the connected devices. The Fibre Channel port LEDs are located above their respective ports and provide port log-in and activity status information.
1Port Logged-in LED (green)
2Port Activity LED (green)
3Fibre Channel port
Figure 4: Fibre Channel port and LED locations
Port Logged-in LED (green)
The Logged-in LED indicates the logged-in or initialization status of the connected devices. After successful completion of the POST, the switch extinguishes all Logged-in LEDs. Following a successful loop initialization or port login, the switch illuminates the corresponding logged-in LED. This shows that the port is properly connected and able to communicate with its attached devices. The Logged-in LED remains illuminated as long as the port is initialized or logged in. If the port connection is broken or an error occurs that disables the port, the Logged-in LED flashes. See “Logged-In LED indications” on page 44 for more information.
Port Activity LED (green)
The Activity LED indicates that data is passing through the port. Each frame that the port transmits or receives causes this LED to illuminate for 50 milliseconds. This makes it possible to observe the transmission of a single frame. When extending credits, the Activity LED for a donor port will reflect the traffic of the recipient port. See “Distance” on page 24 for more information about extended credits and donor ports.
HP StorageWorks 2/8q Fibre Channel Switch Installation Guide | 17 |
