It should be FreeNAS GUI only but when you add jails like Plex things gets a bit more complicated.
You can't add drives to an existing vdev but you can add vdevs to an existing pool. Please read Cyberjock's ZFS guide (link is in my signature) ;)
Thanks for the link. I paid close attention to the Keynotes of the pdf. With that being said I will prolly go with RaidZ2 and start ordering more HDD's. I know the limit is up to 11 drives that can be added to a single vdev within a zpool. I have loaded FreeNas in a VM on my other ESXi server which is a Type 1 Hypervisor .I will play around with this until I build my separate FreeNas system which should be next week or so. Till then I need to burn in my brain that single disk vdevs are very very bad. A Good backup solution is mandatory for me at least. Will prolly end up reading this guide 10 or 20x before I feel comfortable moving my ESXi FreeNas playground to production...
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