The Ins and Outs of Apple’s New File System, APFS

Your Mac is full of files, in fact, millions of them. You don’t need to know about most of them, because part of the operating system, called the file system, manages these files. The file system handles how files are written, read, copied, and deleted, all in the background. The file system also creates and stores a catalog of all the files on your computer, so the Finder and your apps can find files when they need them.

With macOS High Sierra, Apple has introduced a new file system called APFS (Apple File System). In this article, I’ll introduce you to this file system, and tell you a bit about how it’s different from the previous file system. I’ll also warn you about some issues that may be problematic as you negotiate this change.

Read the rest of the article on The Mac Security Blog.

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