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System LEDs
The 4-bay NAS features three sets of LEDs that provide information on the system status. Review the illustrations below for the LED locations on the chassis.
Front LEDs
- Status
- Ethernet 1
- Ethernet 2
Interior
- Disk activity
LED behavior
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 |
| Alternating red and blue | RAID synchronization; software update Note: Do not remove disks or cut power to the NAS unless it has been powered off. |
| Solid red | Error |
Front and disk LEDs
The status and disk LEDs indicate the NAS’s: status, drive health, and activity. This section describes the behavior of the LED indicators.
| Status LED Color | Disk LED Color | State |
|---|---|---|
| - | Activity LED for working disks (until they are fully initialized) | Blinking occurs as the device is booting; will cease once the drives are fully initialized |
| Solid blue | Activity LED for working disks | Device is functioning properly and the drives are working (read/write) |
| Blinking blue/red | Blinking blue/red | RAID synchronizing; will cease once operation has concluded |
| Blinking red | Solid red for non-functional disks | RAID is degraded; data is intact but the array is no longer protected should another disk fail |
| Solid red | Activity LED for working disks | Temperature alert (critical level) – the product will shut off |
| - | Activity LED for working disks | Operating system update in progress |
| Activity LED for all disks | Temperature alert | |
| Solid red for non-functional disks | RAID has failed and data has been lost | |
| - | Disks are disconnected | |
| Fan is not spinning | ||
| The NAS is receiving its power via a connected UPS; or, the power supply has been cut and the UPS has run out of reserve power – the product will shut off |
Ethernet
| Ethernet LED Color | State |
|---|---|
| Solid blue | Connected to an active network |
| Off | No connection or the network cannot be found. |