I'm going to be setting up my first NAS soon and want to be sure that I have a backup solution in place as well. I'd like to store all of my files locally rather than using a cloud service for backups. I could either buy a premade backup drive (WD Elements, Seagate Expansion, etc.) or a large hard disk and an enclosure and assemble one myself. Can those of you with experience in this area please guide me? I'd appreciate learning about the pros and cons from expert data hoarders :) Thank you!