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====== System LEDs ======

The LaCie 8big Rack Thunderbolt 2 LEDs provide information on the system status. Review the illustrations below for the LED locations on the chassis. See [[system-overview|]] for further details on each LED.

===== Front =====

{{:products:8big-rack-thunderbolt2:ill:ill-8big-rack-thunderbolt2-front-leds.jpg?500|}}

  - Thunderbolt host
  - Thunderbolt daisy chain
  - Status
  - Hard drives
  - Identification
  - Mute

===== Rear =====

{{:products:8big-rack-thunderbolt2:ill:ill-8big-rack-thunderbolt2-rear-led.jpg?600|}}

  - Identification LED

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===== Inside the front chassis ====

{{:products:8big-rack-thunderbolt2:ill:ill-8big-rack-thunderbolt2-drive-leds.jpg?500|}}

  - Fan LEDs
  - Hard drive LEDs

===== LED behavior =====

==== General LED behavior ====
The list of colors below will help you identify the general status of your LaCie 8big.

^ Color ^ State ^
| Solid blue | Ready |
| Slow blinking blue | Idle mode |
| Fast blinking blue | Startup and shutdown |
| Blinking red and blue | RAID synchronization |
| Blinking red | Warning |
| Solid red | Error |

==== Status and hard drive LEDs ====
The status and hard drive LEDs work together to provide up-to-date details on your LaCie 8big’s health.

^ Status LED ^ Hard drive LEDs ^ State ^
| Fast blinking blue | Blinking blue | Startup and shutdown |
| Slow blinking blue | Off | Hard drives have spun down and the Thunderbolt ports are in idle mode, allowing for daisy chain |
| Solid blue | Solid blue | The DAS is ready. |
| Solid blue | Blinking blue for working hard drives | The hard drives are being accessed (read/write). |
| Blinking blue/red | Blinking blue/red | RAID synchronizing |
| Blinking red | Solid red for non-functional hard drives | RAID is degraded. Data remains intact but the array is no longer protected should another hard drive fail. |
| Blinking red | Blinking red on a hard drive | Hard drive warning. A hard drive may be experiencing errors or, it is about to fail. |
| Solid red | Solid red for a non-functional or failed hard drive | One or more hard drives 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. A critical state is accompanied by an audible alert. |
| Solid red | Solid or blinking blue | One or more fans are not spinning. |

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==== Thunderbolt 2 ports, identification, and mute LEDs ====

=== Thunderbolt 2 ===
^ Behavior ^ State ^
| Solid blue on the Thunderbolt 2 host LED | The Thunderbolt 2 port is connected to a computer. |
| Solid blue on the Thunderbolt 2 daisy chain LED | The LaCie 8big is connected to a daisy chain of Thunderbolt devices and/or displays. |

=== Identification ===

^ Front Identification LED Behavior ^ Rear Identification LED Behavior ^ State ^
| Blinking amber | Blinking amber | An identification button has been pushed (front or rear). |
| Off | The identification feature is off. |

=== Mute ===

^ Behavior ^ State ^
| Solid amber | The mute button has been pushed to turn off an audible alert or, to stop the unit from sounding an audible alert. |
| Off | The mute feature is off. |

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==== Hard drive and fan LEDs (inside the front chassis) ====

=== Hard drives ===

^ Behavior ^ State ^
| Solid blue | The hard drives are ready. |
| Blinking blue | The hard drives are being accessed (read/write). |
| Blinking blue/red | RAID synchronizing or firmware update. |
| Blinking red on a single hard drive | Warning that the hard drive may be failing. |
| Blinking red on multiple hard drives | Warning that the RAID may be failing. |
| Solid red on a single hard drive | The hard drive has failed. |
| Solid red on multiple hard drives | The RAID has failed. |
| Off on hard drive slots within the chassis | A hard drive has not been plugged into the slot's SATA connection or it is not receiving power. |

=== Fans ===

^ Behavior ^ State ^
| Solid blue | The fan is working. |
| Solid red | The fan has failed. |