directory valence check error on Disk Utility

I upgraded to 10.14.4. I then ran DISK UTILITY. I then get:

"checking snapshot 1 of 2 - error: directory valence check" directory (old ox10074): nchildren(4) does not match dress count (0)- warning: snapshot fsroot tree are not repaired: they'll go away once the snapshot is deleted"


What's going on. How can I delete that snapshot?

At the end it Disk Utility says everything is okay

Posted on Mar 27, 2019 8:08 AM

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Posted on Aug 9, 2019 11:16 AM

As I understand it:


  • This is not a problem.
  • The wording "they'll go away once the snapshot is deleted" is key; snapshots are automatically deleted over time so any one that's corrupted just disappears eventually. You do not need to delete it yourself.



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18 replies

Jun 14, 2019 1:19 PM in response to grant31

I'm pretty sure that mine is a software issue too, as it only started with the Mojave update, and only seems to affect Time Machine snapshots. The number of snapshots varies (whether pre or post hourly backup), but there are always snapshots hanging around even right after a backup. And whatever snapshots do remain, I get the "directory valence check" error when running first aid in disk utility. Thanks for keeping this discussion going. Hopefully, we'll find an answer.

Jul 25, 2019 7:18 PM in response to Underwhelmed

To follow up...


Asked about this issue at the Genius Bar and was referred to a supervisor who told me that it has everything to do with the migration to APFS from older drives with the OS X Mojave update and is nothing to worry about. It doesn’t affect performance or Time Machine backups. I asked for more detail, but he said that it gets way too technical for something so irrelevant. To put my mind at ease, I took him at hit word. I hope that helps.

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directory valence check error on Disk Utility

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