HA redundant port

Hello guys,
 
I'd like to know which port can I use to create a redundant interface with HA port included.
(because there is only one HA port)
My Fortigate is 201E.
I know that there are NPU issues between the ports if I create LAG/Redundant interface.
 
Thank you.
 

Hello Fullmoon,
 
I've just tested in Lab.
I cannot use HA port combining with another port to create a redundant interface.
But I can if I use two data ports without HA; eg. port10, 11 or port2, 3.
I think this is limited by hardware.