HGST I currently have 8x 4TB HGST + 11x 8TB HGST and two left over 4TB WD drives deployed (see my Signature for exact model) though i am currently sourcing replacements for all 4TB drives because I'm chronically running out of space I've had 2 of each 4TB and 8TB HGST drives fail though considering i bought all of them used off Ebay with drive hours ranging from 4 to 11 years this is expected and still way cheaper than buying new I also have 2 Seagate Iron Wolf Pro 10TB drives in a Synology enclosure in a Mirror for critical personal data and 2 Iron Wolf Pro 16TB drives cold in storage for when i run out of space on my Synology One of the 16TB Iron Wolfs was delivered DOA and i got it replaced otherwise they are pretty good so far. The 10TB Iron Wolfs are going on 5 years of drive hours so i cant complain You can also look into more stats in my DiskAge list i attached but the Failed section is not complete because i started this after the first few failures and cold spares are not listed Failures i have had so far (as far as i can recall, i haven't been to good with recording them as they occurred) were mostly fast rising error counts in uncorrectable smart errors, see last entry in the attached file. I also had one drive become completely unresponsive iirc.
DiskAge-Status_censored_20260622.txt