Tbh, you also have Seagate and Micron drives in Drive Compatibility List.
https://www.truenas.com/truenas-mini/
I checked my drive (ST14000NM001G) and the number of sectors is exactly the same as Guaranteed sectors listed in specs: https://www.seagate.com/www-content/product-content/enterprise-hdd-fam/exos-x-16/en-us/docs/100845789f.pdf
Before this I thought it mean “minimum number of sectors”, but now I am more inclined to believe HDD should have the exact number and if not its defect.
Btw, I cant find the same info for WD drives. Any idea where WD lists Guaranteed sectors for their HDDs?
How can one be sure new WD HDD of the same model will have the exact same size as previous one?