Most of the drives that have failed on me failed rather quickly and showed signs early on. The 1.5TB Seagate being the exception.
6TB drives are too expensive to make redundant on a consumer level.
Edit: Let's be real here guys. If you have a 6TB drive what's going to be on it that isn't actually replaceable? Eh...eh? If you can afford something like that, something like a separate 1TB for actual stuff that needs backing up can be had for pennies on the dollar. I have GBs of photos and video from over the years that I have on 2 separate drives, but something that fills a 6TB? Bruh, that ****'s going to be movies, TV, or games...and we all know how you acquired it. When my ex killed my 3TB I wasn't mad, I just replaced it and had 3TB of free space
If you have a drive like that for business needs it'd be in your best interest to actually buy 2 of the drive to have a proper backup located elsewhere. Just my 2c.