Every computer system needs a backup strategy to cope with different scales and types of disaster. How to work out what needs to be preserved, and how to do about reducing the risk of data loss.
Time Machine
Support for encrypted HFS+ ends next year in macOS 28. Does that also affect encrypted disk images? Could you use in situ conversion to APFS Encrypted on old Time Machine backups?
DAS and CTS are largely responsible for work by E cores. DAS typically submits more than 700 activities for scheduling, including those for Time Machine backups, which have changed in Sonoma and later, with implications for LaunchAgents and LaunchDaemons settings.
Have you got any encrypted HFS+ disks you still back up to, or tucked away in storage? Now is the time to plan what to do with them. Here is a guide with practical suggestions.
You realise that a few hours ago you trashed an important file by accident. How can you search your Time Machine backups without looking through them one at a time?
Can be a Mac-saver if you have problems when your backup storage isn’t available. You don’t need to run Time Machine to make them, and can roll back in Recovery, as shown here.
macOS will delay disk and other input/output operations for background tasks like backing up. Is there any point in disabling that in an Apple silicon Mac to make backups faster?
How to browse log entries for an event that occurred many days after its entries have been removed from the active log, by discovering its exact time and the processes involved.
After logging in, macOS may check for system software updates, run an initial Time Machine backup, and run XProtect Remediator scans. This is how those happen.
If you’ve upgraded to Tahoe, your Time Capsule should still back up normally. But erase it to start new backups, and Time Machine refuses to back up to it any more.
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