I am an absolute CAVEMAN with computers, but there are very important files that you MUST keep, and a lot of them that are so so in importance. Figuring out who is who is the hardest part for me.
All drives can, and will fail. Probability of a really good (expensive) drive failing goes way up, if it's the solo copy of it on earth.
I hate the $$$$Money$$$$ suck that you see around computers where prior the "lifetime software's" are now offered in month to year installments, but lifetime is seemingly gone, and going with it was quality, a company that actually GARA about your files, and their continued protection, or any other word or adjective that described a product anyone stood behind.
So No I don't have a name for you, but if you copy that image onto several drives, the probability of all of them failing is pretty low, so you can make copies of the really important stuff, and if a drive does fail, then that is the time to copy, so you don't become victim to lost importance.
Files can also be printed, and paper even though it's very NON cool, can be kept safe for a long time. so you have the data.
Yes being a Caveman also makes restoring anything a tedious process, but at least you have the data to restore.
Oh yeah, F the "cloud" it's not in my possession, so it's gone. All the fine words used to describe all of the software makers also apply to Cloudies. See I said I was a caveman. :-)))))