If you have done lots of work applying tags to files in loopcloud you may wish to ensure that the databases and configuration are backed up to a separate drive. 

The procedure is: 
  • Open Loopcloud
  • Hold ALT, Click the menu/gear icon
  • Select Advanced, Show user library folder. 
  • Close loopcloud (important so the database isn't being changed when you back it up)
  • From the user library folder take a backup of the folder with your username (which will be your email with the @ sign missing).