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LED Behavior and Button Functions

General LED Behavior

The list of colors below helps you identify the general status of your NAS:

Color State
Solid blue Ready
Blinking blue Startup; shutdown; activity
Blinking red and blue RAID synchronization; software update
Blinking red Warning
Solid red Error

Front and disk LEDs

The front and rear LEDs indicate drive status and activity. This section describes the behavior of the LED indicators. Note that even if you have turned off the front LED using Device Manager > Settings, events triggering a red light will always cause the front LED to turn on.

Front LED Color Rear LED Color State
Blinking blue Activity LED for working disks (until they are fully initialized)
Occurs as the device is booting
Solid blue Activity LED for working disks
Device is functioning properly and the drives are working
Blinking blue/red Blinking blue/red
RAID synchronizing
Activity LED for working disks
Operating system update in progress
Blinking red Solid red for non-functional disk(s)
RAID is degraded; data is intact but the array is no longer protected should another disk fail
Activity LED for all disks
Temperature alert
Fan is not spinning
The NAS is receiving power via a connected UPS
Solid red Activity LED for working disks
Temperature alert (critical level) – the product is preparing to power off
The power supply has been cut and the UPS has run out of reserve power; the product is preparing to shut off
Solid red for non-functional disks
RAID has failed and data has been lost
Off for disconnected disks Disks are disconnected


Front button

Short push

5big NAS Pro only: When the the product is operating, a short push of the on/off button will turn the 5big NAS Pro off.

Long push

5big NAS Pro only: A long push of more than four seconds cuts the power from the 5big NAS Pro, forcing it to shut down immediately. A long push can result in data loss and should only be used when a short push does not work.

Factory settings/rescue

LaCie 2big NAS: The front LED button can be used in tandem with the ON/OFF switch to revert the device to its factory settings (see Reset to Factory Conditions: 2big NAS).

LaCie 5big NAS Pro: The front LED button can be used in tandem with the reset button on the rear of the device to launch the LaCie NAS Rescue (see LaCie NAS Rescue: 5big NAS Pro).

© LaCie 2023 Last modified : Feb 24, 2016