Curious about how Time Machine snapshots can supposedly prevent the space occupied by deleted files from being recovered right away, Adam Engst ran some tests and came away more confused than when he started.

After hearing about Ventura upgrade problems from a reader, Adam Engst did some research to determine that you should try to have at least 37 GB free before upgrading to Ventura. And how you determine that 37 GB might matter.

Want to use the extra space on your APFS-formatted Time Machine drive to store non-backup files? Howard Oakley explains how you can make that possible by creating an APFS volume or an APFS container.

Howard Oakley of The Eclectic Light Company blog shows that Disk Utility in Monterey now lets you view and work with APFS snapshots.

macOS 11 Big Sur has thrown a cryptographically signed monkey wrench into the inner workings of backup apps that make bootable duplicates. There are now workarounds, and Apple promises to fix the necessary underlying tool, but Adam Engst suggests that we need to rethink the role bootable duplicates play in a modern backup strategy.

Regular Mac users don’t need to mess around with APFS snapshots, but if you’re a power user, Rich Trouton’s instructions for creating, managing, and using APFS snapshots could be invaluable.

macOS High Sierra switched to APFS (Apple File System) for Macs with solid-state storage, but what does it do? Jeff Carlson explains why Apple made the change, how APFS works, and what it can do for you.