How to make a scratch disk?

Final cut pro>System Settings>Scratch Disk>Set the scratch disk and tick all the boxes and check if all are correct.

Once the boxes have been check, click on each on after the other and make sure that it has been connected to HD 2. Then create a folder which is down below, once the folder has been made make another folder 

Once both folders have been made, get your SD card and stick it into a SD Slot in the computer. Then transfer all to your folders and check once that has been done.

once that has been done, go through the procedure one more time to see if everything is working as it needs to be. If so these are the steps you need to create a scratch disk.