Yeah it is a datacenter HDD and noise isn't much of an issue there i assume. I have a couple of other systems with mechanical HDDs that are barely audible, but

Yeah it is a datacenter HDD and noise isn't much of an issue there i assume. I have a couple of other systems with mechanical HDDs that are barely audible, but they aren't 18TB either :-P. I bought that one because it was big, relatively cheap and read on /r/DataHoarder that datacenter HDDs are slightly less likely to have issues (not sure how realistic vs superstition that might be though, main reason i got it was because it was big).