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Time Machine always does full backups, Sierra 1...

For a long time I manually backed up my MBP using a 2 TB external drive. Each week or so the typical Time Machine backup used about 3 to 4 GB, and finished in a few minutes. Suddenly it is doing only full backups and takes about six hours to complete. These full backups are about 670 GB each, and only three can fit on my 2 TB backup drive.

 

I have searched the Apple Discussions and other forums and applied many of the suggestions made. Things like erasing the backup drive, reinstalling OSX, rebuilding the Spotlight index with "mdutil -E /" command, deleting the .fseventsd directory, safe boot, and other things that a can't remember right now. I have tried two other backup drives (1 TB and 4 TB), and the problem manifests on those drives too.

 

When i try some fix, I always wipe the backup drive, and allow Time Machine to do the first backup (6 hours).  I then make a small file change, and run time machine again. It does not do what should be a small incremental backup, but instead starts up another 670 GB, 6 hour backup.

 

A lot of the online suggestions are for earlier versions of OSX. I'm using Sierra 10.12.6. This MBP, which otherwise runs just fine, has a 1 TB SSD. The problem may have started when the very large iPhoto database was upgraded to Photos.

 

Thank you for reading this. Is there something else to try for a fix?

Start with D3 in the 1st linked article.

 

Time Machine Troubleshooting

最後更新：2017-08-26 07:54:14

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