You’re in a rush to eject an external disk, but the Finder tells you it’s in use by unnamed apps. What should you do next, and what has Sloth to do with it?
volume
What separates System and Data volumes, and how does macOS know they’re part of a boot volume group? What distinguished backup volumes, and what is Sidecar?
How to obtain and read entries in the Unified log made by APFS. Their structure, and a guide to their identification and occurrence.
Keybags, wrapping keys, VEKs and KEKs all explained. Did you realise how Recovery Keys are implemented? Or how the SSV protects against read errors?
From the GPT division of storage space, through APFS containers, down to individual volumes, an account of how APFS works.
After studying thousand of log entries in less than 2 seconds, this is how macOS updates its values for purgeable and available space. But who uses them?
Details of what happens when an APFS (Encrypted) volume is mounted, when mounting a Time Machine snapshot, unmounting a volume, and loading a Cryptex.
A step-by-step account of how Disk Arbitration and APFS mount an external disk, from handling its partitions, to performing trims.
Updated charts of containers and volumes on boot volume groups for Ventura, with details of cryptexes and what they do.
APFS backup disks offer different possibilities for adding volumes for your own use, alongside the backup volume. How do you decide what’s best?
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