A mirror only lets you use one disk in a stack in usable space (50%, or less if for some reason you want a double redundant mirror, i.e. three disks). A RAID-Z ...
(Mods - if this is better suited for a different forum, feel free to move, it is a bit of a grey area). Hopefully building up a new ESXi box for home this weekend. I have 2 small (40gb) SSD's that I ...