Links to my presentation, and to a selection of useful articles about Time Machine backups to APFS, and more.
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An exploration of how Time Machine backs up to APFS, using Mints to make log access quick, simple, and easy to understand. And notes on changes in Monterey.
From Apple’s basic Backup to your iDisk, through the first version of Time Machine in 2007, to Time Machine to APFS in Big Sur.
Lists the Standard Exclusions set by the system, explains custom ‘sticky’ exclusions, how iCloud Drive is handled, and oddities with Photos libraries.
A lot of what Time Machine does when making backups to an APFS volume remains a mystery. So far we don’t understand the magic used by Apple.
With a new version of Xcode, I knew that my network backup would take several hours. Then, as it neared its conclusion, disaster struck: the router reset itself and the network share vanished.
Provided it doesn’t have to back up large folders containing many small files, Time Machine backing up to APFS on a network share works well.
The first full backup is performed as a manual backup, and largely occurs in file-by-file copying from source to the backup store. It is more efficient than to HFS+, but differences could be less than 10%.
Does Big Sur’s Time Machine preserve sparse files and clones when backing up to APFS volumes?
It’s common to want or have to change either the source or destination disk for backups. How well does Time Machine to APFS cope with that?
The Eclectic Light Company 