MergerFS Pool File Creation Data Different Than Data Drive

i have a weird problem.
I migrated from OMV5 to OMV6, finally got my pool working again.
Today Plex was showing me all kinds of "Recently Added" that weren't recent.
When I looked at the file creation dates, there are a lot with creation date of today (Jan 7), but not all, some examples:
Here the pool shows creation of Jan 7th, but on the actual data drive that contains the file, it shows Jul 11th and Jul 12th.


But that isn't true with ALL files, for example here, the pool shows creation date the same as the data drive date:

Any ideas how to fix this?

Ok thanks!
I started looking through all the drives and found the directories on Disk2, which is an old drive in the pool. Some of these files were created years ago, why would they all of a sudden be recreated on an a new drive especially if they already exist on a "newer" drive?
I'm curious to know what other files this may have happened with, like backups and such.

Zitat

directories should exist on more than one drive unless you did something outside of mergerfs.

Right, still need to confirm, but I think I created the video file, which would have been created years ago, and then recently possibly added the subtitles, which would have possibly been created on the newer drive.

So does mergerFS, show the most recent directory? IE i have a dir on disk1 created on Dec 12 2022, and a dir on disk2 created on Jan 02 2023, will mergerFS show the dir as created on Jan 02 2023? Kinda seems like thats the case.

EDIT: just confirmed on a few dirs, that the video file is one drive, and the srt is on another drive, which makes sense.

I think what happened looking back, and what messed up plex, was that i had to change my pool to mount the drives as /dev-disk-by-label-MediaD* all of my drives are mounted by label, except one that is mounted by UUID, so it was missing that drive in the pool. Plex probably did a scan noticed it was missing those files and did some kind of clean up. Then I noticed the drive was missing from the pool, I added it, then Plex did a scan again and added those files with an "added_at" date as jan 3rd. I had a Plex backup from 1 day before the OMV5 -> OMV6 upgrade which would have had the correct "added_at" dates. I restored the backup and everything is fine.

Zitat von ryecoaaron

I would guess the mergerfs docs (link in the plugin) will tell you.

For anyone curious

Zitat

The default policy for getattr is ff. The information for the first directory found will be returned. If it wasn't the directory which had been updated then it will appear outdated.

The reason this is the default is because any other policy would be more expensive and for many applications it is unnecessary.

To always return the directory with the most recent mtime or a faked value based on all found would require a scan of all drives.

If you always want the directory information from the one with the most recent mtime then use the newest policy for getattr.

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This makes sense.

Thanks for the help ryecoaaron