7
Chapter 1: Before You Start
Other LED Indicators
LED Indicator Color Status Description
DRIVE status Indicator
(on tray)
Green
Static Drive ready and idle
Blinking Accessing drive
Orange Static Drive error/Port disabled
1
O No internal Drive
ALERT
Red Blinking System error
2
O System normal
Rear 1GbE LAN
(on upper side of jack)
Green
Static
1 Gbps connected
Orange
100 Mbps connected
O 10 Mbps connected/No network
Rear 1GbE LAN
(on lower side of jack)
Green
Static Network connected
Blinking Network active
O No network
Note:
1
Please try to restart your Synology NAS or re-insert the drives, then run the HDD/SSD manufacturer's
diagnostic tool to check the health status of the drives. If you can sign in to DSM, please run the built-in
S.M.A.R.T. test to scan the drives. If the problem remains unresolved, please contact Synology Technical
Support for help.
2
If the
ALERT LED
continuously blinks red, this indicates there are system errors such as fan failure, system
overheating, or volume degrade. Please sign in to DSM for detailed information.
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