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====== LED Behavior and Button Functions ======

==== General LED Behavior ====
The list of colors below will help 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 **Dashboard > Eco Management**, 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 disk(s) (until they are fully initialized) \\ {{:static:led:led-dashed1-blue.png?nolink|}} | Occurs as the device is booting; will cease once the drives are fully initialized |
| Solid blue {{:static:led:led-solid-blue.png?nolink|}} | Activity LED for working disk(s) \\ {{:static:led:led-dashed1-blue.png?nolink|}} | Device is functioning properly and the drives are working (read/write) |
| Blinking blue/red {{:static:led:led-dashed2-bluered.png?nolink|}} | Blinking blue/red \\ {{:static:led:led-dashed2-bluered.png?nolink|}} | RAID synchronizing; will cease once operation has concluded |
| ::: | Activity LED for working disk(s) \\ {{: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 its power via a connected UPS |
| Solid red {{:static:led:led-solid-red.png?nolink|}} | Activity LED for working disk(s) \\ {{:static:led:led-dashed1-blue.png?nolink|}} | Temperature alert (critical level) – the product will shut off |
| ::: | ::: | Power supply has been cut and the UPS has run out of reserve power – the product will shut off |
| ::: | Solid red for non-functional disk(s) \\ {{:static:led:led-solid-red.png?nolink|}} | RAID has failed and data has been lost |
| ::: | Off in disconnected disk(s) | Disk(s) is/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 or, place the 5big NAS Pro into deep sleep mode if the option has been configured in NAS OS. See [[..:dashboard:eco|]] for details on deep sleep mode. 

==== Long push ====
**5big NAS Pro only:**  A long push of more than four seconds will cut the power from the 5big NAS Pro, forcing it to shut down immediately. A long push is not recommended as it may result in data loss.

==== 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|]]).