Moving home folder or large folders to HDD Okay so I know this subject has been touched on but.. my specific question is this.

I recently bought an SSD and made it my boot drive, I bought a caddy for my super drive spot and put my old HDD in its place. I then backed up and erased the HDD. I want to move my home folder on to the HDD but im worried about performance. I primarily use Logic Pro X and Ableton. and I have some VERY big logic and ableton projects. Should I move the rest of my home folder to HDD and keep my logic files on SSD or should I just move my entire home folder to HDD?
You could just use a Fusion Drive. Note that this will erase all data on both drives, so you'll need another drive to store your data on.

http://www.macworld.com/article/2014011/how-to-make-your-own-fusion-drive.html