The disks on a model E appliance hardware platform each have a green and a red LED.
The meaning of the blinking codes is as follows.
|Status||Green LED||Red LED|
|Disk not present||Off||—|
|Disk present — no activities||On||—|
|Disk present — active||Blinking (4 Hz)||—|
|RAID rebuilding||—||Blinking (1 Hz)|
|Locating drive||—||Blinking (4 Hz)|