I have a MacPro with 2 internal drives. I have OS and Apps on the MacHD drive, my intention is to put data on the second drive. I always install new apps only on the MacHD. But when I look at the Data drive in the Finder I see the User folder (house icon), Applications, Library , System , and Users folders. Does this seem right ? Are folders with these names supposed to be on both drives? I'd like to do improve my housekeeping , file naming and organizing. So trying to be sure that everything is where it should be. I want to be sure that Applications are putting their data on the Data drive only. That way I can clone my MacHD (OS/Apps) ~ weekly, and backup my Data using Timemachine or other backup more frequently. Also helps speed things up to have the OS/Apps and Data on separate drives.