Which OpenIndiana directories to backup for bare metal recovery

For bare metal recovery, backup every ZFS filesystem under /. You can find what isn't a ZFS filesystem by running:

`$ awk '$3 != "zfs" { printf("%-20s %s\n", $2, $3); }' /etc/mnttab | sort`

You can also add /mnt to that list if you choose to not backup your mountpoint contents.