First, go to software.fandm.edu (requires NetID authentication) and download CrashPlan. Once it is download, find the download and run it.
Double click on Install CrashPlan Pro
Read the Software Licence Agreement and click Continue
Click Agree if you agree to the licence agreement.
Enter your local adminstrator name and password.
Wait for the install to finish.
Go to your Applications folder and run CrashPlan. If you are prompted to install Java, follow the on screen instructions.
Enter your First name, Last name, NetID, and your password, then click Create Account.
CrashPlan will now scan your computer and start backing up files. You can close CrashPlan and it will run in the background.
CrashPlan will monitor CPU utilization to make sure that it is not interfering with your work (i.e. it will stay out of your way and you shouldn't notice that it is even there).