To those concerned about failure, you realise these are the Red and Purple lines right? They're not as failure prone as your typical desktop drives.
Red is for NAS. Use RAID and have a spare disk on hand.
Purple is for surveillance. 99% chance there'll be nothing of value on the disk when it fails. For the 1%, pay for the recovery or let it slide. If it's vital to an investigation, give the busted disk to the cops and let them deal with it.
Both use cases are for live systems, not for archives. Convenience and availability, not permanence. For archives, use optical or smaller offline HDDs. Have a minimum of two copies.
If you insist on using NAS as an archive, back it up to tape and never discard or overwrite an old tape unless you're absolutely certain that everything on it is also on another tape. That's hard work, so just keep proper archives and replace lost/corrupted files from that.