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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 {{:static:led:led-dashed2-blue.png?nolink|}} | Activity LED for working disks (until they are fully initialized) \\ {{:static:led:led-dashed1-blue.png?nolink|}} | Occurs as the device is booting |
| Solid blue {{:static:led:led-solid-blue.png?nolink|}} | Activity LED for working disks \\ {{:static:led:led-dashed1-blue.png?nolink|}} | Device is functioning properly and the drives are working |
| Blinking blue/red {{:static:led:led-dashed2-bluered.png?nolink|}} | Blinking blue/red \\ {{:static:led:led-dashed2-bluered.png?nolink|}} | RAID synchronizing |
| ::: | Activity LED for working disks \\ {{:static:led:led-dashed1-blue.png?nolink|}} | Operating system update in progress |
| Blinking red {{:static:led:led-dashed2-red.png?nolink|}} | Solid red for non-functional disk(s) \\ {{:static:led:led-solid-red.png?nolink|}} | RAID is degraded; data is intact but the array is no longer protected should another disk fail |
| ::: | Activity LED for all disks \\ {{:static:led:led-dashed1-blue.png?nolink|}} | Temperature alert |
| ::: | ::: | Fan is not spinning |
| ::: | ::: | The NAS is receiving power via a connected UPS |
| Solid red {{:static:led:led-solid-red.png?nolink|}} | Activity LED for working disks \\ {{:static:led:led-dashed1-blue.png?nolink|}} | 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 \\ {{:static:led:led-solid-red.png?nolink|}} | RAID has failed and data has been lost |
| ::: | Off for disconnected disks | Disks are disconnected |

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===== 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 [[..:help:reset|]]). \\ \\ 
**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 [[..:help:recovery|]]).