First off, here’s what I have to backup:

-2x MacBook Pros with 2 & 4 TB SSDs

-Desktop with a 1TB SSD and a 2TB HDD

-HTPC / media server with a 1TB SSD and (for now) 6TB storage drive

I’m trying to do a 3-2-1 with personal data so the documents and photos will have a cloud backup. A second copy locally on a different machine seems sufficient for everything else.

Would two drives in raid 0 to mirror the other drives be a reasonable? I don’t think I’ll exceed 12 TB on the media server anytime soon so I could do 2x12TB in a NAS or build one up from old hardware.

Appreciate any recommendations for/against this or specific NAS enclosures that would be well suited to the application. I don’t want to waste the power using an old desktop, but I don’t want to spend $400 on a NAS that when I have the parts.

Thanks!