So, the main one will be a SSD. However, I need a regular HDD for video/music/photo storage, as SSDs have limited space. My question: Will the HDD always be on, and thus creating whatever little noise it makes at all times? Or, will it only start up when I'm writing/accessing files to/from it? I want it to be off when not accessed. I'm very much not an expert, so any advice much appreciated. Thanks.