Best raid level for home NAS ? 12 port mobo

movies games comicbooks and anime
im legit gunna bury myself in a bunker one of thees days

I stripe across mirrors for my array. With RaidZ2 you'd be putting 6 drives per vdev (otherwise no space advantage over mirrors), giving you 4 disks more space but to add any disks you would then have to get 6 new disks to grow the pool. With mirrors I only need to upgrade 2 disks at a time, when I eventually need more space.

oh the mobo is way cheaper here
http://www.newegg.com/Product/Product.aspx?Item=N82E16813157419

then do that