Node canister indicators

Indicator LEDs on the back of each system provide status information about the control canister and onboard ports.

For more information about the LEDs on the node canister, refer to Procedure: Understanding the system status LEDs. For information about the LED indicators on each optional host interface adapter, see Host interface adapter ports and indicators.

Node canister Ethernet port LEDs

Each system has two onboard 1 Gbps Ethernet ports. Two LEDs above each port provide information about the link speed and activity on the Ethernet connection. Onboard Ethernet port LEDs describes the LED indicators.

Table 1. Onboard Ethernet port LEDs .
Name	Symbol	Color	State	Meaning
Link speed	None	Green	OFF	No link connection or the link is connected at less than 1 Gbps.
Link speed	None	Green	ON	There is a 1 Gbps link connection to a remote device.
Activity	None	Green	OFF	No activity.
Activity	None	Green	FLASHING	Activity on link.

Node canister SAS port LEDs

Each onboard SAS port has two LED indicators that provide information about the status of the port and connections. Onboard SAS port LEDs describes the LED indicators.

Table 2. Onboard SAS port LEDs .
Name	Symbol	Color	State	Meaning
Link	None	Green	OFF	No link connection on any lane (phy).
Link	None	Green	ON	There is a connection on at least one lane (phy).
Fault	None	Amber	OFF	No fault. All four phys have a link connection.
Fault	None	Amber	ON	This can indicate several different error conditions: Only 1, 2, or 3 lanes (phys) are connected, but not all 4. All 4 lanes are not running at the same speed. All 4 all lanes are not connected to the same remote port. An unsupported device is connected to the port.

Node canister battery status LEDs

The battery status icons and LEDs on the system provide information about the status of the battery during system operations. Battery status LEDs summarizes the battery status LED indicators.

Table 3. Battery status LEDs.
Name	Color	State	Meaning
Battery status	Green	FAST BLINK	The battery is charging. It does not have a sufficient charge to perform a "fire hose" dump.
		BLINK	The battery has sufficient charge to perform one "fire hose" dump.
		ON	The battery is fully charged and has sufficient charge to perform two "fire hose" dumps.
		OFF	The battery is not available for use.
Battery fault	Amber	OFF	If the LED is off, no known conditions are preventing normal operation, unless the battery status LED is also on.
		ON	An active condition or fault could compromise normal operation.
		SLOW BLINK	There is a non-critical fault with the battery.
Battery in use	Green	OFF	The battery is not being used to power the canister.
Battery in use	Green	FAST BLINK	The battery is currently providing power for a "fire hose" dump.

Node canister system LEDs

The node canisters system icons and LEDs on each system provide information about the status of the node canister itself. Node canister system LEDs summarizes the status LED indicators.

Table 4. Node canister system LEDs
Name	Color	State	Meaning
Power	Green	OFF	No power is available or power is coming from the battery.
		SLOW BLINK	Power is available but the main CPU is not running; the system is in standby mode.
		FAST BLINK	System is in self test.
		ON	Power is available and the system code is running.
Status	Green	OFF	Indicates one of the following conditions: No power to the canister Canister is in standby mode or self test Operating system is loading
		BLINK	The canister is in candidate or service state. It is not performing I/O. It is safe to remove the node.
		ON	The canister is active, able to perform I/O, or starting. The system is part of a cluster.
Canister fault	Amber	OFF	The node is in candidate or active state. Any error that has been detected is not severe enough to stop the node participating in a cluster or performing I/O.
		BLINK	The canister is being identified. There might or might not be a fault condition.
		ON	The node is in service state or an error exists that might be stopping the system code from starting (node error 550). The node canister cannot become active in the system until the problem is resolved. The problem is not necessarily related to a hardware component.