You may have added a second controller, or for some other reason, you want to move a LUN's assignment
from one controller to the other. First, be certain you actually have two controllers. Then, connect to your ActiveRAID via the CLI application:
activeadmin -d <IP address of the ActiveRAID>
Then, you'll need to run these example commands replacing the LUN number, array name, and port numbers to the appropriate ones.
lun delete --lun 0 --array "Data" --port B1,B2
This will clear the current lun mappings for this array.
array assign "Data" A
This will re-assign this array over to controller A.
lun create --lun 1 --array "Data" --port A1,A2