TBH, I personally question a lot of the temps that others may say are too high.
I know I will more than likely get a lot of flack for this but in all reality even the vendor specs for the
WD80EFZX states:
View attachment 13167
So to me if the drives are ~45C they are still within "Operating Temps" and still have ~15C wiggle room (heck even ~25C if you wanted to push it to the "Non-Operating" threshold)...
Yeah, it would be great if they were closer to 0C and I understand that running cooler is better for drive longevity... but not all of us have dedicated AC for the Server(s) or live in the South Pole. ;)
Okay, I'm ready to take my beating now... :p