@bradner - you won't have to rebuild for this LOL - but looking at the number of cameras you have, I would probably try to balance it more than front or back. Try to balance it such that if one drive fails, you are not completely naked LOL on the other side of the house. I have several cameras from all sides of the house going to 3 different drives so that if one goes out, I at least have an overview on the other drive. Any cams that you have that are redundant cover areas or significant overlap, I would recommend splitting them over the drives.