The options for Macs without Thunderbolt are FireWire- and USB-compatible drives. If you have a Mac with Thunderbolt, select a drive that’s Thunderbolt-ready, to take advantage of its speed.
The best type of backup drive to use depends on the type of Mac you have. If your drive capacity is 999GB, for example, you’ll be best off with a backup drive that’s 2TB or larger. To determine how large your Mac’s hard drive is, select it in the Finder and press Command-I. To ensure that you have room for multiple versions of files, select an external drive that’s at least two times bigger than your Mac’s hard drive. For more tips on backing up your data, see “ Backup basics” and “ Bulletproof backups.”
#Set up time machine on mac how to
Here’s how to get set up in OS X 10.8 (Mountain Lion) using an external drive. OS X has included Time Machine since OS X 10.5 (Leopard). Apart from keeping spares of every file, Time Machine maintains a record of how your system looked on any given day, so you can easily put everything back the way it was if something goes wrong. Time Machine works with your Mac and an external drive to save important documents, photos, and system files regularly. One of the easiest ways of doing so is to use OS X’s built-in backup program, Time Machine.
If you value your data-whether it’s some perfect photos you took last weekend, your entire music collection on iTunes, or your draft of the next great American novel-you must stay on top of regular system backup.
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