Combine physical disks into one logical drive

Got asked this interesting question today. Usually I hear one big physical disk split into multiple logical drives, but this time a single logical drive made up of smaller physical disks is desired.

I think RAID 0 fits this scenario, but to store a piece of file equally in 2 places for personal use (not a server) looks pretty useless to me. If one disk breaks, you’re left with half of every file, which is no different from breaking both. As compared to if you had two logical drives on two disks, if one disk break, you have the other disk with some complete files.

Are there other alternatives?

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