The data is based on more than 25,000 units in active service from 15 different consumer-grade hard drives from Seagate, Hitachi, and Western Digital.
»blog.backblaze.com/2014/ ··· d-i-buy/I have to say that I have also not had much luck with Seagate hard disk drives. Some work perfectly in the beginning and then decide to fail after 1-2 months use which is rather scary to trust your data with. I've been plenty fortunate with the "6" Hitachi brand drives, with no failures to date to report. I've also had success with Western Digital, with the exception of a failure or two in years past. Failures are to be expected with any drive, I've simply had more success with Hitachi and Western Digital.