System LEDs

 

The 4-bay Rackmount NAS features two sets of LEDs that provide information on the system status. Review the illustrations below for the LED locations on the chassis.

 

Status

 

 

  1. Status 1 (red only)
  2. Status 2 (blue only)

 

Disks

 

    

  1. Power
  2. Activity


 

Note on the disk power LED: The disk tray power LED will turn solid blue when the device is powered on.


 

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
Blinking red and blue RAID synchronization; software update
Blinking red Warning
Solid red Error

 

LED indications

The status and drive LEDs work together to provide up-to-date details on your NAS's health.

 

Status LED 1 Status LED 2 Disk Activity LED State
Off Blinking blue Blinking blue The device is booting and will turn solid blue; the device is shutting down.
Off Solid blue Blinking blue Disk Activity
Blinking Red Off Blinking blue RAID is degraded (data remains intact but the array is no
longer protected should another disk fail); preparing to
synchronize the RAID.
Alternating red Alternating blue Blinking blue RAID synchronization; NAS OS update in progress.
Off Off Off The device is off; fans are not spinning; the power supply
has been cut but power is provided by a UPS; the power
supply is not providing power and, if applicable, the UPS
has run out of reserve power.
Solid red Off Solid red File system check failed.
Solid red Off Blinking blue Temperature alert (critical level). The product will shut off
due to the high temperature.
Solid red Off Solid red RAID has failed and all data has been lost.