Switch LEDs

The IBM Storage Networking SAN16C-R Switch has LEDs on both the front and back of the switch to indicate the status of different system components during bootup tests and online operation. The following tables describe the location of each LED and the meaning of its color:

Table 1. Chassis Activity LEDs for a IBM Storage Networking SAN16C-R Switch
Switch Component Identifier	Location	Function	Color	Status	State
Power supply status LED	Left side of chassis front panel	System power status	None	Off	Either of the following conditions exists: The system is not receiving sufficient power from the PSUs. NX-OS is not running.
			Green	Solid On	Both PSUs are installed and operational.
			Red	Solid On	A PSU has failed.
System status LED	Left side of chassis front panel	System operational status	Green	Solid On	All diagnostics have passed, NX-OS is running and the system is operational.
			Amber	Solid On	Any of the following conditions exists: The system is running bootup diagnostics. The system is booting. A minor temperature threshold is exceeded.
			Red	Blinking	Mismatched airflow direction detected in one of the following modules: Fan modules—The switch will go down in 10-15 seconds. PSUs—The switch will go down in 10 minutes. Fan modules and PSUs—The switch will go down after 10 minutes.
			Red	Solid On	One of the following conditions exists: A diagnostic test failed or another fault occurred during bootup. A major temperature threshold is exceeded.
Fan status LED	Left side of chassis front panel	System cooling operational status	Green	Solid on	All fan modules are operational.
Fan status LED	Left side of chassis front panel	System cooling operational status	Red	Solid on	Fan failure.
Power supply status LED	Faceplate of each PSU	PSU operational status	None	Off	No input voltage to the PSU.
			Green	Solid on	PSU output voltage is OK.
			Green	Blinking	PSU output voltage is not OK, but input voltage is OK.
Power supply failure status LED	Faceplate of each PSU	PSU fault status	None	Off	PSU is operating normally.
			Amber	Solid on	One of the following conditions exists in the PSU and PSU is still operational: Over voltage Over current Over temperature Fan failure
			Amber	Blinking	PSU has a fault, but is still operational.
Fan status LED	Left side of chassis front panel	Fan module operational status	Green	Solid on	Fan module is operating normally.
Fan status LED	Left side of chassis front panel	Fan module operational status	Amber	Solid on	The fan in the fan module has failed.

The following table describes the Ethernet port LEDs for the IBM Storage Networking SAN16C-R Switch.

LED	Status	State
Link status LED	Off	There is no link.
Link status LED	Solid Green	Indicates a physical link.
Activity status LED	Off	There is no traffic.
Activity status LED	Blinking Amber	Indicates traffic.

The following table describes the Fibre Channel and IPS port status LEDs for a IBM Storage Networking SAN16C-R Switch.

Status	State
Solid Green	The link is up.
Regular Blinking Green	The link is up and the port beacon is active.
Random Blinking Green	The link is up and traffic is flowing through the port.
Solid Amber	The port is configured to be disabled or port hardware has failed.
Blinking Amber	A hardware fault condition exists.
Off	The port is configured as enabled but link is not up and port beacon is not active.