General use
Status
LED
Hard
drive
LED
State
Blinking
white
Blinking
white
The device is booting and will turn solid white; the device is shutting down.
Solid
white
Solid
white
The NAS is ready.
Solid
white
Blinking
white
Hard drive activity.
Off Off The device is off; fans are not spinning; the power supply has been cut and a UPS is
providing power; the power supply is not providing power and, if applicable, the UPS
has run out of reserve power.
RAID and NAS OS
Status LED Hard drive LED State
Alternating
red and
white
Alternating red and
white
RAID synchronization; NAS OS update in progress; volume check
is pending or in progress.
Blinking
red
Solid or blinking white RAID is degraded. Data remains intact but the array is no longer
protected should another disk fail; preparing to synchronize the
RAID.
Blinking
red
Alternating red and
white on a single hard
drive LED
RAID is synchronizing with a replacement hard drive. The
behavior will change to alternating red and white for all LEDs.
Solid red Solid white File system check failed; failed RAID and all data has been lost.
Temperature
Status LED Hard drive LED State
Blinking red and
off
Solid or blinking
white
Temperature is high. Check the environment temperature and the
ventilation.
Solid red Solid or blinking
white
Temperature is critical. The product will shut off due to the high
temperature.
UPS
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