Nolan has a portable hard drive that can't be seen with his Mac anymore. How can he get the data off it? Leo says this is a perfect example of why you need more than one backup of your data. You can't back up your data onto a hard drive and then delete it from your computer and think you have a backup. You don't. The best backup strategy is a 3-2-1 backup strategy. Three backups, on two different media, one off-site. That's the only way to be safe.
portable hard drives
Ron bought a Western Digital Passport USB hard drive and he's having issues with it. Ron can see it in the device manager, but he can't access it on the computer. Leo says that a USB connected drive only means the computer can see the device. Doesn't mean it can read it. Drives do die, and sometimes they die sooner rather than later. That's why Leo recommend SSD drives for the main drive and a spinning drive for data. It sounds like his drive has simply died.