error 11 time machine back up - HELP!

Been trying to back up - fails 2/3rds way through.

Got as far as seeing on the console what the error is, but the file seems to be the back up itself. I've attached the picture. Can anyone help?

MacBook Air

Posted on May 2, 2020 8:17 AM

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Time Machine error 19 I'm using Time Machine to backup to a WD and getting "MacBook Air 2021.sparsebundle” could not be accessed (error 19)". MacOS Ventura 13.1. All my old backups are gone and now unable to create a new backup. Any thoughts? Thanks!
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All Time Machine backups take too long 2018 Mac mini running macOS 12.6.1. I have an 8TB USB drive connected to the machine with two volumes on APFS. One volume I use to Time Machine backup my laptop over the network, and that seems to work just fine. The other volume is a local Time Machine volume for the mini. This is a fairly new disk and it was all working fine for a couple of weeks, but now the local backup takes forever and seems to find hundreds of thousands of files to backup. It takes over 24 hours to complete. Then the next time Time Machine starts, it all happens again, hundreds of thousands of changes found and it runs for 24+ hours. It's almost like the mini doesn't recognize that it only has to do an incremental backup. I know for sure there aren't all that many changes between each backup run. I've double checked the Excludes From Backup options and that all looks reasonable (it excludes both the local and remote TM volumes, iCloud, OneDrive, and Dropbox folders). I can't find anything else that would include so much changes. It estimates the size of a full backup at 1.68TB which appears to be the entire Macintosh HD (303.64GB available of 2TB). I can't find any other settings that would cause TM to do a full backup every single time and I've rebooted the machine at least once to see if that fixes the problem, to no avail. I can't upgrade this machine to Ventura yet due to compatibility issues. Any ideas what's going on or what to look for?
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2 replies

May 3, 2020 12:40 PM in response to jeremy_v

Hi,

I've taken all those steps. The problem is specific to the error message I attached.

jeremy_v

Community Specialist

May 3, 2020 10:28 AM in response to steffan66

Greetings steffan66,

Thanks for visiting the Apple Support Communities! I understand you're unable to create a Time Machine backup with your Mac.

I suggest using First Aid with Disk Utility on the backup and startup drive of your Mac. You can see that suggestion, and further steps, from the following article: If you can't back up or restore your Mac using Time Machine - Apple Support

Kind regards.

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error 11 time machine back up - HELP!