What’s the Update volume doing weeks after the last macOS update? What can I do if ejecting my Time Machine backup storage causes an improper ejection error?
APFS
We’ve recently discovered a macOS service for ‘trials’ which runs ‘experiments’. Why hasn’t Apple told us, and explained its implications for our privacy?
Born secretly on 27 March 2017, it was Apple’s biggest gamble. Introduced in High Sierra, it didn’t work on Fusion Drives and had other problems. Also explains version numbering.
All disks cache data to be written, which makes benchmarking them tricky. It has more serious consequences which macOS tries to allow for in file systems and backups.
Why Time Machine makes snapshots, and how they can grow and apparently consume free space. What you can and should do to manage this.
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?
Problems with the file system of Time Machine backups haven’t gone away with APFS. As there’s no way to copy your backup volume, how to tackle such problems?
In Monterey, these haven’t changed much since Big Sur. However, those small differences are significant, particularly on M1 Macs.
Which of the cluster of hidden files and folders at the top level of an APFS volume should be preserved or copied to a copy of that volume?
When you try ejecting a single volume of a bootable volume group on an external disk, other volumes are also ejected even though you chose to keep them mounted.
The Eclectic Light Company 