Apple File System (APFS) on macOS 10.13 and later Apple Computers
Apple File System (APFS), is the default file system for Mac computers with macOS 10.13 or later. APFS offers strong encryption, space sharing, snapshots, fast directory sizing, and improved file system optimizations. APFS is optimized for Flash/SSD storage used in modern Apple computers. APFS can also be used with older systems with hard drives, solid state drives, and external storage.
macOS 10.13 or later supports APFS for bootable and data volumes.
APFS allocates a container (partition) within empty disk space. When a single APFS container has multiple volumes, the container’s free space is shared and is automatically allocated to any of the individual volumes as needed. If desired, you can specify reserve and quota sizes for each volume. Each volume uses only part of the overall container, so the available space is the total size of the container, minus the size of all the volumes in the container.
Apple File System format is used on Apple computers using macOS 10.13 or later.
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APFS: Apple File System format.
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APFS (Encrypted): APFS format encrypts the volume.
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APFS (Case-sensitive): APFS format is case-sensitive to file and folder names. For example, folders named “Office Files” and “OFFICE FILES” are two different folders.
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APFS (Case-sensitive, Encrypted): APFS format, is case-sensitive to file and folder names, and encrypts the volume. For example, folders named “Homework” and “HOMEWORK” are two different folders.
You can add or delete volumes in APFS containers. Each volume within an APFS container can have its own APFS format—APFS, APFS (Encrypted), APFS (Case-sensitive), or APFS (Case-sensitive, Encrypted).
