Of course, I am continually encouraging Mac folks to have some type of Mac backup. Many people use Time Machine which is problematic at times. This article lists four Mac Apps used for backing up a Mac in various configurations including cloning. I have used all four of the Apps, they are all good with some differing capabilities. Currently, I am using Carbon Copy Cloner and ChronoSync. If you are looking for a backup App with more horsepower than Time Machine, then read the article.