In this chapter, we discussed several basic concepts necessary to understand macOS storage, including what disks, volumes, and partitions are, and how you can examine and manage them in macOS. We explored the macOS filesystem and how its hierarchy structure can be classified into four domains (local, system, user, and network) according to their purpose. We also examined the advantages of the new default filesystem: APFS. Finally, we learned about the tools macOS provides to optimize your storage space.
By now, you should feel comfortable with describing macOS-supported filesystems; describing and understanding the macOS default APFS filesystem; understanding the differences between disks, volumes, and partitions in macOS; examining storage; partitioning a disk; erasing a disk or volume; adding volumes to an APFS container; and mounting, unmounting, and ejecting disks/volumes.
In the next chapter of this book, we will examine an important topic that describes how access to the...