Since I don't use my laptop's CD-drive I want to put a small (8 GB) SSD into the CD-drive slot (I'll use a caddy similar to this one). I want to use compressed btrfs on the SSD and put all the data on the big HDD.
I want to avoid unnecessary spin-ups. I want the system to be fast… I want to minimize wearing of the SSD.
How should I layout the mount points of my file-system?
How can I prevent the HDD to spin up at the same time?