"Some drives just don’t work in the Backblaze environment. We have not included them in this study. It wouldn’t be fair to call a drive “bad” if it’s just not suited for the environment it’s put into. [...] The drives that just don’t work in our environment are Western Digital Green 3TB drives and Seagate LP (low power) 2TB drives. Both of these drives start accumulating errors as soon as they are put into production. We think this is related to vibration. [...] These drives are designed to be energy-efficient, and spin down aggressively when not in use. In the Backblaze environment, they spin down frequently, and then spin right back up. We think that this causes a lot of wear on the drive."
--
trey @ gépház