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Time Machine

Scheduled activities: 1 Scheduling by DAS

How macOS schedules tasks like making automatic Time Machine backups, from property list to transactions between DAS and CTS.

January 23, 2023 Macs, Technology

How macOS schedules background activities

The story of how Mac OS X went from cron, to launchd, and ended up with Duet Activity Scheduler, to schedule background activities like backups.

January 21, 2023 Macs, Technology

Spotlight problems: mds_stores and mdworker in trouble

Excessive CPU use by mds_stores is a common cause of sluggish performance. Explains what it does and what you can do bring it under control.

December 8, 2022 Macs, Technology

Disk Utility and Time Machine in Ventura

Has Ventura brought any relief from Disk Utility’s inability to run First Aid on Time Machine’s backups, and what about changes in Time Machine itself?

November 9, 2022 Macs, Technology

Copy, clone, backup: is there a difference?

Copies, clones and backups are three different things. Here their differences are explained with examples from APFS and modern macOS.

October 1, 2022 Macs, Technology

Preparing your Mac for Trade In or passing on

If you plan to trade in or pass on your old Mac when you upgrade to a new one, there are pitfalls in ensuring you don’t lose any data, while ensuring your old Mac is completely wiped.

July 29, 2022 Macs, Technology

How to find it in the log: 1 An introduction

Browse log entries for a recent boot, examine the entries for Time Machine, and check for errors in another subsystem.

July 20, 2022 Macs, Technology

What can you do with Time Machine backups on APFS?

When Time Machine makes its backups to APFS storage, just what can and can’t you do? How can you prevent large temporary files from stealing space on storage?

July 19, 2022 Macs, Technology

Explainer: Archiving isn’t backing up

Archiving is very different from backing up, from the storage media used to integrity checks. Here are pointers to help you preserve important documents.

June 25, 2022 Macs, Technology

How to make more use of your backup disk

APFS backup disks offer different possibilities for adding volumes for your own use, alongside the backup volume. How do you decide what’s best?

May 20, 2022 Macs, Technology

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