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- #SSD DRIVE MACBOOK PRO 2012 MAC OS#
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It’s important to understand the difference between creating a new APFS volume and creating a new partition. What if I need to create an NTFS Partition for Boot Camp?
#SSD DRIVE MACBOOK PRO 2012 WINDOWS#
exFAT is a very useful, capable cross-platform file system that both macOS and Windows can use for data transfer.
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What other kinds of file systems can Disk Utility create on a disk?Īccording to Apple, Disk Utility can format a disk’s Partition as APFS, Mac OS Extended, MS-DOS (FAT) or exFAT. “ See: Add a Volume to an APFS Container.” Unlike rigid partitioning schemes that pre-allocate a fixed amount of space for each file system, APFS-formatted volumes can grow and shrink without volume repartitioning.”
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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.Īccording to Apple: “With Apple File System, the disk space of a container is shared among all of its volumes…. 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 what’s called an APFS container on your disk.
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HDDs and Apple’s Fusion drives will not be updated.
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The macOS High Sierra installer will upgrade only SSDs to APFS. You won’t usually see this unless you run the Unix diskutil list from Terminal. Finally, there’s a third Volume the EFI Volume. As of macOS Lion, there is also an invisible Recovery Partition. Out of the box, it’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 aren’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).
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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.Ī 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.Ī Partiton is a logically grouped, named portion of a disk that can hold data. It’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.įinally, 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. Fortunately, vendors like OWC and Transcend found enough of an upgrade market to make custom Apple-compatible modules.Note, for simplicity here, a Hard Disk Drive (HDD) and A solid State Drive (SSD) will be referred to as a disk. Best Storage Upgrade for the Price: WD Blue 3D NAND 1TB at Amazon.Īpple chose to use MODFIED PIN-OUTS on their SATA and PCIe modules, so ‘just any’ mSATA or M.Best Budget-Friendly Option: Samsung 860 EVO 250GB at Samsung.
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