The 8-Bay Rackmount NAS device has several different LED groups.
Following are tables explaining the various behaviors of these LEDs:
|1 - Status LED||2 - Ethernet LED|
|Blinking blue||Startup; shutdown; activity|
|Blinking red and blue||RAID synchronization; software update|
|Solid purple||Updating hardware|
|Blinking purple||Communication has been lost||
|Solid blue||The respective Ethernet port is connected|
to the Internet.
|Blinking blue||Activity on the respective Ethernet port.|
|Off||The respective Ethernet port is|
not connected to the network.
|3 - Disk LEDs |
|Status LED||Disk LEDs||State|
|Blinking blue||Blinking blue for working disk(s) (until they are fully initialized)||Occurs as the device is booting and will cease once the drives are fully initialized.|
|Solid blue||Blinking blue for working disk(s)||Drive(s) working (ie, reading and/or writing)|
|Blinking blue/red||Blinking blue/red||RAID synchronizing and will cease once the operation is finished.|
|Blinking blue for working disk(s)||NAS OS update in progress.|
|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 blue LED for all disks||Temperature alert (first-level warning)|
|Fans are not spinning|
|A power supply has been cut but power is provided by the second power supply and/or the UPS.|
|Solid red||Blinking blue for working disk(s)||Temperature alert (critical level). The product will shut off due to the high temperature.|
|The power supplies are not providing power and, if applicable, the UPS has run out of reserve power. The product will shut off.|
|Solid red for non-functional disk(s)||RAID has failed and all data has been lost.|
|Not illuminated on disk slots inside the chassis||A disk has not been firmly plugged into the slot's SATA connection or the disk is not receiving power.|
|Solid purple||Solid blue||Updating hardware|
|Blinking purple||Solid blue||Communication has been lost.|
|4 - Identification LED||5 - Mute LED|
|Blinking amber||An Identification button has been pushed (front, rear, or NAS OS).|
A corresponding LED in the rear of the NAS will blink to identify
the unit in a rack.
|Off||The Identification feature is off.||
|Solid amber||The Mute button has been pushed to turn off an audible alarm or to stop the unit from sounding an audible alert.|
|Off||The Mute feature is off.|
Alert sounds are permitted.