Macos sierra time machine11/25/2023 One note the Apple advisor and I picked up on. Now that I have rebooted my backups are back to being their normal hourly happy self again. For the OS I reminded them that High Sierra just came out what a month ago and i’m on Sierra which should be still supported and going to HS is not an option for me. ![]() Yes they blamed it on 3rd party apps AND also suggested I’m not on the latest OS. I will give you one guess as to what their response was…. ![]() At first they were only slightly off (90 mins in between) but it got exponentially worse over time. I was going NUTS trying to figure out what was going on with my backups. I cannot thank you enough for these articles. Whatever anyone likes to call the affected system. My DispatchView tool is an excellent way of diagnosing this problem, and I have the log extracts to demonstrate how this bug occurs. The only solution is restarting the Mac when backups become irregular.ĭAS is part of an undocumented system in macOS which I have previously referred to here as Grand Central Dispatch (GCD), which is incompletely documented – and have been criticised in comments for doing so. Those systems most likely to be affected are those running macOS Server, as reported in comments on this blog. I reported this bug to Apple in February, and initial experience with Sierra 10.12.4 suggested that it may have been fixed. All activities managed by DAS are affected. They then become extremely irregular and unreliable – backups may be made several hours apart, for example. It also may not affect Macs which are left running continuously for many days, but which enter system sleep I am unable to let my Mac enter system sleep because when it does so, it sleeps its hard drive (despite being set not to).Īfter a variable period of continuous running, usually longer than 7 days, sometimes over 30 days, Time Machine backups and other activities which are managed and dispatched by the Duet Activity Scheduler (DAS) will cease being scheduled correctly. This bug does not affect Macs which are shut down daily, or even weekly, for example. If you need help, please contact Apple Support.The old bug in macOS Sierra, which has been present since its first release last year, resulting in Time Machine backups and other background tasks becoming highly irregular and unreliable, has not been fixed in Sierra 10.12.4. After Migration Assistant is done, quit Migration Assistant, then log in to the migrated account on your Mac to see its files.You might want to start in the evening and allow migration to complete overnight. Click Continue to start the transfer. Large transfers might need hours to complete, and might seem to pause occasionally.Replace: The account on your Time Machine backup will replace the identically named account on your Mac.Rename: The account on your Time Machine backup will appear as an additional user on your Mac, with a separate login and home folder.In the example pictured here, John Appleseed is a user account. If an account on your Mac has the same name, Migration Assistant asks whether to rename or replace: Before clicking Continue, learn what it means to transfer a user account.Select your Time Machine backup, then click Continue. ![]() When asked how you want to transfer your information, select the option to transfer from a Mac, Time Machine backup, or startup disk.If your Mac starts up to a setup assistant, which asks for details like your country and network, continue to the next step, because the setup assistant includes a migration assistant. It's in the Utilities folder of your Applications folder. Make sure that your Time Machine backup disk is connected to your Mac and turned on.For example, if your Mac starts up to a flashing question mark, you need to first reinstall macOS. If you need to reinstall macOS, do that before continuing.
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