Mac os x time machine slow

What does Time Machine do?

This path needs a bit of explaining. TimeMachineBackup is the name of the drive you're using to store your backups on. In our case, the Time Machine drive name is Tardis.

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This name never changes. Finally, the NameOfBackup is the computer name you assigned to your Mac when you first set your Mac up.

Time Machine Slow? Speed it up With This Terminal Hack!

If you've forgotten the computer name, you can find it by opening the Sharing preference pane; it will be displayed near the top. You should delete this file if it exists, as it may contain out-of-date or corrupt information. As mentioned above, Time Machine keeps track of which files have been updated and need to be backed up. This file system changelog can become corrupt for various reasons, the most likely being unexpected shutdowns or freezes, as well as removing or turning off external volumes without ejecting them properly first.

When Time Machine determines that the file system changelog isn't usable, it performs a deep scan of the file system to build a new changelog. The deep scan process greatly extends the time it takes to prepare Time Machine to perform a backup. Luckily, once the deep scan is complete and the changelog is corrected, Time Machine should perform subsequent backups in a normal fashion. Share Pin Email. Tom Nelson has written hundreds of articles, tutorials, and reviews for Other World Computing and About.

He is the president of Coyote Moon, Inc. Might be having some errors. Also, does it take this long to transfer a file that is 1gb in size? You should manually transfer files to see the speeds. The Terminal will show a list of local snapshots with names like com. To remove a snapshot:. I wanted to link to my post and suggest you try every solutions mentioned there, but then I saw you already linked to exactly that post yourself. I had similar issues and after trying all these other things had to rebuild the launch services database to sort out Spotlight which then sorted out Time Machine.

Did rebuild with Onyx and started backup tonight - got 1 Gb copied per night. So didn't help :. Cake Day. Looks like you're using new Reddit on an old browser. Time machine extremely slow. How old is the external disk? Have you tried with another? It is pretty new. I have spent a ridiculous amount of time and have tried so many different ways to get Time Machine Backups to work properly, this has improved the speed x10 at least — Finally some relief :.

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  5. This command does seem to be helping. I bought a new 8TB backup disk for my iMac and the initial backup of about 2 TB worth of data ran for over 10 days and had only backed up about GB. At that rate, it would take about two months to complete. If you look at the provided command:. Note the double-negative, so this in fact lets Time Machine run at full speed.

    To re-enable throttling, you can simply change the 0 to a 1 :. Holy Crap!!! I understand the purpose of throttling in certain contexts mother-in-law, annoying dog next door, etc. Left my mac to backup over night yesterday and woke up today to see that just 9 gb!? My god this was wonderful. It takes effect instantly no need to restart the backup and I immediately saw a 50x increase in backup speed. It was looking like it would take close to 20 hours — 10 so far with 12 more showing. I tried this command and it the time immediately dropped to hours but at least I can tell that it is moving much more quickly.

    I did notice that while it was off and the backup was running the screensaver was jumpy, so I guess this could be one way macs keep everything running smoothly by keeping some processing power in reserve? The difference in speed is unbelievable. Thank you so much! Can you help a beginner? Where do I go to enter the command: sudo sysctl debug. The first tme I tried this it worked like a charm. This time, however, nothing.

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    My backup is loading at single figure kbs. Does anyone have any idea why this might be? Name required. Mail will not be published required.

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