So, worst case scenario: SSD dies in my computer, I go to restore from an external backup only to find that's corrupt or failing. What's the best solution for backing up a portable computer? The problem with using multiple Time Machine destinations is that you don't really know which one is the most intact. When traveling, drives can get damaged. I thought of using an external SSD in addition to my internal SSD and hope that both drives wouldn't fail or have corruption simultaneously. I can't think of a better portable backup solution. Thoughts? What are you using?