System LEDs

The LaCie 5big Thunderbolt 2 LEDs provide information on the system status. Review the illustrations below for the LED locations on the chassis.

Front

The list of colors below will help you identify the general status of your LaCie 5big:

The status and disk LEDs work together to provide up-to-date details on your LaCie 5big’s health.

Status LED Behavior	Disk LEDs Behavior	State
Fast blinking blue	Blinking blue	Startup and shutdown
Slow blinking blue	Off	Disks have spun down and the Thunderbolt 2 ports are in idle mode, allowing for daisy chain
Solid blue	Solid blue	The DAS is ready.
Solid blue	Blinking blue for working disks	The hard drives are being accessed (read/write).
Blinking blue/red	Blinking blue/red	RAID synchronizing
Blinking red	Solid red for non-functional disks	RAID is degraded. Data remains intact but the array is no longer protected should another disk fail.
Blinking red	Blinking red on a disk	Disk warning. A hard drive may be experiencing errors or, it is about to fail.
Solid red	Solid red for a non-functional or failed disk	One or more disks have failed and the RAID is broken. Data is lost.
Blinking red	Blue	Temperature alert; a power supply is failing
Solid red	Blue	Temperature is critical.
Solid red	Solid or blinking blue	The fan is not spinning.