On that SSD, you’ll have another 512GB partition called Other Data (or whatever you want to call it). And if you want files from several backups ago, that you’ve since deleted, they should be on the drive (that’s why you want more than 256GB external storage). Then each subsequent back up will be just an iterative update (everything you’ve changed since you last made a backup). It’s very fast, and will make a bootable copy of your internal drive (including apps and settings). Use Disk Utility app to partition the SSD into two drives name them (1) Backup Drive and (2) Other Data (for example)Ĭonsider partitioning the Backup Drive as 512GB in size, despite your internal storage being only 256GB in sizeīuy an app called Carbon Copy Cloner. This means you’ll need to set a password and if you lose the drive, nobody else can read the data on their computer without that password-it’s encrypted. Buy a 1TB SSD ( I prefer Sandisk Extreme Pro costs $139 on Amazon)įirst format the drive using APFS (Encrypted).

Ssd drive for macbook air 2015