Running 6TB HGST 7200RPM NAS drives in my Drobo5n, I like them a lot but they run very hot. Hotter than the 4TB WD Reds they replaced.
I replaced the Sunon 120mm fan (12v undervolted to ~6.5v stock) with a Noctua 120mm on a 12v rail plus 33ohm resistor, everything is quiet and cool.
EDIT: I see you were referring to 10TB drives, my apologies. Not sure how the HGST 6TB and 10TB compare.