Western Digital My Cloud EX4 User Manual - Manual (Page 17)

GETTING STARTED
12 WD MY CLOUD EX4 PERSONAL CLOUD STORAGE
USER MANUAL
Front Panel Hard Drive (HDD) LEDs
The following table describes the front panel hard drive LED behavior.
Back Panel Ethernet (Network) LEDs
The following table describes the network and activity LEDs.
Note: Looking at the port, the LED on the top left is the Activity LED, and the one on the
top right is the Link LED.
Function Color Appearance Function Description
No Drive Black
(off) ------ Drive is not present.
Drive Present, No
Activity Blue Solid Drive is present but there is no activity.
Active Drive Blue Flashing Drive is present and showing drive activity.
Hard Drive fault Red Flashing The drive is present but has a hard drive
fault or failure.
State LED Appearance State Description
Link down Link Off Cable or device is not plugged in, or other
end of link is not operational.
Link up – 10/100
Connection Link Yellow Cable is plugged in, and both ends of the
link have successfully established
communications. 10/100 network
connection.
Link up – 10/100/
1000 connection Link Green Cable is plugged in, and both ends of the
link have successfully established
communications. 10/100/1000 network
connection.
Link idle Activity Solid Active communication is not in progress.
Link busy Activity Green - Blinks Active communication is in progress.