WD Gold 16TB terrible noise after long copy

Everytime i make a very big copy (500Go) to my WD GOLD 16Tb disk, after this copy the hard disk make a terrible noise (endless movements of heads?) during lot and lot of minutes. On my Mac, if I completely unmount it and disconnect it, it stops. If a mount it… it continues. What is this behavior ?

THe only way i found to stop it, is to power off the disk and wait little bit …

Thank for help

Hi @gagnongu,

Please refer to the article Western Digital Hard Drive Noise:
https://support-en.wd.com/app/answers/detailweb/a_id/32906