Other Led Indicators - Synology DS1821+ Hardware Installation Manual

Other LED Indicators

LED Indicator
DRIVE status
ALERT
LAN
Rear 1GbE LAN
(on left side of jack)
Rear 1GbE LAN
(on right side of jack)
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 orange, this indicates there are system errors such as fan failure,
system overheating, or volume degrade. Please sign in to DSM for detailed information.
7 Chapter 1: Before You Start
Color Status
Static
Green
Blinking
Orange Static
Off
Orange Blinking
Off
Static
Green
Blinking
Off
Static
Green
Blinking
Off
Green
Static
Orange
Off
Description
Drive ready and idle
Accessing drive
1
Drive error/Port disabled
No internal Drive
2
System error
System normal
Network connected
Network active
No network
Network connected
Network active
No network
1 Gbps connected
100 Mbps connected
10 Mbps connected/No network