Media size…. Looking at your uploads folder to get a good idea about how much space is being used. While it may not be 100% of everything, it should get you to about 85-90% of where you need to be. (There might be some uploads related to commerce, or theme resources, etc that might be somewhere else. But in general those don’t take up a bunch of space. Things like avatars, user uploaded images, etc are going to be the lion share of media usage.)