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LED Display & System Status Overview
LED
Color
LED Response
Description
USB
Blue
Blinking every 0.5
sec
1) A USB device is being detected by any
USB port
2) Removing USB device
3) Read/ Write (only for front USB)
4) Backup to external USB/eSATA disk is
in process
ON
USB device is ready (only for front panel
USB)
OFF
Front panel USB copy complete
System
Status
Red/
Green
Green/Red
blinking
alternately, every
0.5 sec
1) HDD is formatting/ system is initializing
2) Firmware is being updated
3) RAID rebuilding
4) RAID capacity expansion
5) RAID level migration
Red ON
1) HDD invalid
2) Volume is full
3) Volume is going to be full
4) Fan out of function
5) HDD read/write error
6) HDD bad sector
7) RAID degraded mode(read only)
8) (Hardware self-test error)
Red blinking every
0.5 sec
Degraded mode
Green blinking,
every 0.5 sec
1) System booting
2) System is not configured
3) HDD is not formatted
Green ON
System is ready
Off
All HDD in standby mode
HDD
Red/
Green
Red blinking
HDD access when disk read/write error
Red ON
HDD read/write error
Green blinking
HDD access
Green ON
HDD power on
LAN
Orange
Orange always ON LAN connected
Blinking
LAN Access