How do you backup your external hard drives? For example you have an external hard drive you store lots of archived projects on as well as media. How do you then backup this (or these?) hard drives? Because if it went wrong, you've lost everything on it! Do you use Time Machine? Say you have a mac and 2 external hard drives. You use one external for storage and another to backup both your mac and your storage hard drive. What about when you need to backup say 4 external hard drives each with 2tb of archived projects and media on? As well as needing to backup your mac(s) of course?