I can't find the answer, and maybe that's down to my poor google skills, but in regards to adding vdevs:
I have RAIDZ2 6x4TB created in the GUI. If I want to add more drives, would it be correct to use use "zpool add -f -o ashift=12 <pool> raidz2 /dev/sd* and then list 6x4TB drives? This would...