Cheeping and crackling new TB3 20TB

Hi,

i got a new G-Raid TB3. The sounds of the drives are very strange to me. Never had that before. And i have dozen of external WD Hard Drives.
It is a constant cheeping and crackling al the time - even i i don’t write or read something.

Here you can have a listen:
https://www.dropbox.com/s/a04cv5wln9h2tex/IMG_3140.MOV?dl=0

Is the Hard Drive defect?

Thanks in advance!

BR
Peter

Normal drive hums/chirps on larger format drives.