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.
