Sun StorEdge[tm] D2 Array LEDs

An environmental services module (ESM) monitors the status of the enclosure using light-emitting-diodes (LEDs) to display each component's health and activity.

Note: The terms flashing and blinking have slightly different meanings when they are used in the description of an LED. The rate of flashing varies according to the rate of occurrence of whatever events the LED is indicating, while the rate of blinking is fixed.

Power On and Subsystem LEDs

LED Name	LED State	Description
Power On	Green	The system is powered on.
	Unlit	The system is powered off.
Subsystem	Amber	A drive, fan, power supply, or temperature error condition exists.
	Flashing amber	An application on the host (for example, Network Storage Agent) uses SAF-TE commands to cause this LED to flash amber to identify the enclosure.
	Green	No error condition exists.

 

Disk Drive LEDs

LED State	Description
Unlit	No disk drive is in the slot.
Green	A disk drive is present but not active.
Flashing green	A disk drive in the slot is active.
Amber	An application running on the host identified an error and used SAF-TE commands to instruct the LED to display as solid amber. This can occur, for example, if the host cannot access the disk.
Blinking amber/green	An application running on the host used SAF-TE commands to instruct this LED to identify the disk drive by blinking amber and green.

 

ESM LEDs

LED Name	LED State	Description
SCSI A/B Termination Power LED	Green	Termination power is being supplied from the host to the associated connector.
ESM Over Temperature/Code Download LED	Yellow	Temperature exceeds the factory preset limits. When this LED is yellow, the Subsystem LED also turns amber.
	Blinking	A code download is in progress.
	Off	Temperature is normal, and a code download is not in progress.
Power On/SCSI Active LED	Green	Power is applied.
	Blinking	SCSI activity is occurring through the ESM.
	Off	Controller is not receiving power.

 

Fan Status LED

LED Name	LED State	Description
Fan Status LED	Green	The fan is operating properly.
	Amber	The fan has failed.
	Off	The fan canister is not inserted or power is not supplied to the system.

 

Power Supply Status LED

LED Name	LED State	Description
Power Supply Status LED	Green	The power supply is operating normally.
	Amber	Either the power supply has failed while the other power supply is operating normally, or the power cord is unplugged.
	Off	Both power supplies either are not plugged in or have failed.