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Last Week on My Mac: Will Disk Utility ever work properly?

Apple could have chosen to make APFS open source or to document it fully, to help third parties develop maintenance tools. It chose not to, but Disk Utility still doesn’t work as it should.

May 22, 2022 Macs, Technology

How much free space does an APFS disk need?

It depends whether you’re going to boot macOS from it, on the space required for snapshots, and how large they could become. And there’s more.

May 18, 2022 Macs, Technology

Last Week on My Mac: Do we have custom access?

Have you found Time Machine docs helpful in solving problems? Do you know what “custom access” means in the Permissions section of Get Info?

February 20, 2022 Macs, Technology

Understanding and managing Time Machine snapshots

Why Time Machine makes snapshots, and how they can grow and apparently consume free space. What you can and should do to manage this.

February 15, 2022 Macs, Technology

Last Week on My Mac: Still struggling with snapshots

One likely cause of vanishing free space are large snapshots. So how can you tell why a snapshot is large, and how can you avoid it?

February 13, 2022 Macs, Technology

Managing snapshots: how to stop them eating free space

T T Read More

Snapshots are of great value, but can grow large if you don’t keep an eye on them. If you find Time Machine or another backup utility is storing large snapshots, here’s what to do.

February 10, 2022 Macs, Technology

Explainer: Disk free space

Confused by this on APFS? So you should be, as it’s complicated by features like snapshots, sparse files, and the file system itself. There’s no single figure.

December 4, 2021 Macs, Technology

Copying a Mac volume to another file system (and back)

Tired of HFS+? Disenchanted by APFS? Why not copy or back up to a different file system? Here are crocodiles waiting to bite you.

November 25, 2021 Macs, Technology

Last Week on My Mac: Snapshot hostages

How to repair a snapshot with an error when it’s one of your backups on a hard disk? Currently this seems impossible, putting all those backups at risk.

November 21, 2021 Macs, Technology

Understanding snapshot data in Disk Utility

Explains the identifiers, sizes and tidemark data shown for snapshots in Disk Utility, in Monterey.

November 13, 2021 Macs, Technology

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