As @JamesIlderton said, you'll have to create the aggregate in two steps. You don't want to remove ADP, it is a huge space savings (without it, each controller will need 3 drives for a root aggr...six 6TB drives is a lot of space compared to a few 10s of GB from each onboard disk for ADP).
Step 1) create the aggreate using the disks which have the ADP data partitions. These will be the 5.3TB sized disks.
Step 2) add a new RAID group with the non-ADP disks.
You will not lose the 50GB or so of capacity on the second set of disks so long as they are added as a separate RAID group. I don't have anything that mimics your setup, but I believe this will work:
# create a new aggr with the ADP disks (5.3TB * 1024 = 5430GB)
aggregate create -aggregate node1_data -diskcount 12 -disksize 5430 -node node1
# add a new RAID group with the other disks
aggregate add-disks -aggreagte node1_data -diskcount 11 -raidgroup new
Make sure you leave a spare disk!
Use the "-simulate" parameter to ensure the behavior you desire is happening. If you want to be absolutely sure of the disks, then use the name...e.g. "-disklist 0.1.*"...to capture only the onboard drives for the first RG. If you get it wrong, it's not the end of the world (there's no data on it yet!), you'll just have to wait for the drives to rezero.
Hope that helps.
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