Beat 2 cups of sugar and oil at the medium speed of an electric mixer for 2 minutes. Add the eggs, one at a time, beating just until the yellow disappears. Add the crushed pineapple and vanilla, beating just until blended.
Combine the flour, baking powder, baking soda, salt, and cinnamon; Stir well. Add to the oil mixture alternately with the mashed banana, beginning and ending with the flour mixture. Mix at low speed just until blended after each addition.
Pour the batter into a greased and floured 12-cup Bundt pan. Bake at 350 degrees for 1 hour or until a wooden pick inserted in the center comes out clean. Cool in the pan on a wire rack for 10 minutes; remove from the pan, and let cool completely on a wire rack.
Combine the powdered sugar and orange juice, adjusting the amount of orange juice to get the glaze you want. Stir well. Drizzle the glaze over the cake.