#What is disk utility scheme upgrade#
#What is disk utility scheme free#

#What is disk utility scheme free#

Space Sharing allows multiple file systems to share the same underlying free space on a physical volume. Adding an APFS Volume to an existing container.ДЄccording to Apple: вЂњWith Apple File System, the disk space of a container is shared among all of its volumesвЂ¦. Each Volume can have a different APFS type: APFS, APFS (Encrypted), APFS (Case-sensitive) or APFS (Case-sensitive, Encrypted.) APFS containers can only contain APFS Volumes. A container can contain one or more APFS Volumes. The installer creates whatвЂ™s called an APFS container on your disk. HDDs and AppleвЂ™s Fusion drives will not be updated.

#What is disk utility scheme upgrade#

The macOS High Sierra installer will upgrade only SSDs to APFS. You wonвЂ™t usually see this unless you run the Unix diskutil list from Terminal. Finally, thereвЂ™s a third Volume the EFI Volume. As of macOS Lion, there is also an invisible Recovery Partition. Out of the box, itвЂ™s called Macintosh HD on the Desktop. The major one, booted from, is formatted as an HFS+ Volume and contains the operating system (macOS) and the user data. Most Macintosh disks have three Partitions and one is the boot Volume. How does all that appear to me as a Mac user? Partitions that arenвЂ™t formatted may not be visible to the OS. When macOS recognizes the file system, it can mount it (make it visible in the Finder).

For example, HFS+, APFS, NTFS (Windows), or EXT4 (Linux). A disk can have one or more Partitions, each with a fixed size (prior to High Sierra.) A Partition must be formatted and mounted before macOS can see it and read/write data.ДЄ Volume is a Partition that has been formatted with a specific file system. And if you do practice, back up all your data and then experiment on a non-mission critical Mac to make sure you understand the fundamentals.ДЄ Partiton is a logically grouped, named portion of a disk that can hold data. ItвЂ™s not intended as a step-by-step guide for direct experimentation. The FAQ starts with the classic (pre-APFS) usage, then explains the changes with APFS as it goes along.ДЇinally, this FAQ is intended to clarify basic notions. The discussion is restricted to simple disks such as found in your Mac or typical external drives. Note, for simplicity here, a Hard Disk Drive (HDD) and A solid State Drive (SSD) will be referred to as a disk.