I’ve got PMS up and running now under DSM7. I see all my media and it plays. However I still see the old Plex folder.
Both it and the new PlexMediaServer have roughly the same number of files (10Gb, 100k files) so it appears migrated.
Can I delete the Plex folder?
Got it, thank you.
I am glad that I asked because I was testing this over the weekend (working on the video today), and I mapped the media differently than you did.
Where you have “/volume1:/volume1”, I had “/volume1/Media:/volume1/Media” which only mapped my media folder to the container (TV Shows/Movies are inside of that shared folder). Would you recommend that it’s implemented the way you have yours set up? I am imagining that yours would be superior as it’s accounting for any number of shared folders (if TV shows and Movies are in two different shared folders, for example), but want to check before I start.
The only downside I can see to this is that you’re giving the entire volume to the container, but at the same time, the container would only have permission to what the PlexMediaServer user has, so it’s permissioned in an alternate way I guess.
Anyways, thanks for the input!
I would recommend mapping volume → volume but also making clear that finer granularity is possible.
By having /volume1:/volume1 , we guarantee the path names are identical in and outside the container.
This means I can do work in either place and have it be immediately available the other side (not that I would likely flip-flop)
Sorry to bother you but I have just realized that there are two Plex directories on my Synology NAS. (DS218+ on DSM 7.0-41890)
/volume1/PlexMediaServer
/volume1/Plex
On /volume1/Plex the Library Folder was last modified on 2020-05-04
/tmp_transcoding 2021-08-04
The 6 language warning files are from 2021-07-30
On the /volume1/PlexMediaServer the AppData folder has last modified on 2021-09-13 12:03:02
The Warning files are from 2021-09-08
I’ve once removed the folder “Plex” but however this folder has been recreated (I don’t know why, maybe while updating the Plex package?)
Can I remove the old “Plex” directory again or do I have to migrate something?
Logs are attached.
Thanks!
Being more precise 
You have one Plex shared folder (the old DSM 6 one)
You have one PlexMediaServer shared folder (the new DSM 7 one)
When you were using DSM 6, the Plex shared folder would be recreated automatically
As of DSM 7, we no longer create Plex or user Plex.
In DSM 7, the PlexMediaServer shared folder will be recreated as well. This is how the package works.
In DSM 7, Synology required a name change. The new name I chose is “PlexMediaServer” because it is also the new Package Name (also a required change).
If you don’t have any metadata in the old “Plex” share;
specifically, you don’t have a Plex/Library/Application Support/Plex Media Server directory,
then it’s ok to remove the Plex shared folder (Control Panel - Shared folders) if you have no use for it.
There are two threads which detail what changed from DSM 6 → now.
Exactly.
If you don’t have any metadata in the old “Plex” share;[/quote]
There are some metadata in this directory. It is about 2.72 GB in Size.
specifically, you don’t have a
Plex/Library/Application Support/Plex Media Serverdirectory,
This directory has been last modified on 2021-08-04 13:19:24. It has no owner and only “PlexMediaServer”, “admin” and “administrators” have Read&Write Access.
Edit:
I haven’t noticed any errors or something in the past days or weeks. These two metadata directories only gained my attention after I’ve deleted a shared folder named “test” this evening. 
Show me please?
The DSM 7 package does not write into the Plex shared folder EXCEPT for the “Migration.log” file it writes when moving your files during DSM 6 → DSM 7 migration.
There should be nothing left behind except media and files which you might have placed there.
what do you have under Application Support ?
If you have a Plex Media Server folder, what is in it?
Lastly, the most important question –
When you installed the DSM 7 package, did your existing server get moved or did you need recreate fresh at some point ?
[quote=“ChuckPa, post:2926, topic:663424”]
what do you have under Application Support ?[/quote]
One folder called Plex Media Server
If you have a
Plex Media Serverfolder, what is in it?
Those folders and the Preferences.xml
Honestly I’m not entirely sure what I did exactly.
If I remember correctly I’ve left it the default settings and haven’t changed anything.
But it could be possible that I’ve missed some logfile path prompts while updating the Plex package later.
Thank you.
Now I think I understand.
Please confirm for me?
Guys, this update totally broke my plex library.
I have NFS mounted network folders on the NAS of which Plex uses. But apparently, mounted folders are no go and I didn’t see any warning about this.
I have set up the permissions and everything but the media files on the mounted folders from the remote NAS do not appear in the library. No, they appear but they are inaccessible.
I tried to manually set the permissions but I am getting this error when I try to add the plexmediaserver user.
I tried to convert the folder to Windows ACL but it is greyed out.
I will try to play with NFS permissions on the remote folder now.
What can I do? Any advice?
Edit: Using Squash on the remote server “Map all users to admin” fixed the issue
Chuck, I’m so sorry I thought I read through really carefully but I clearly did something wrong - I think I may have missed the step to give the PlexMediaServer user Full Access to the Plex share. I have done that now but I don’t think the install migrated, I think it just installed. I didn’t get any error messages at all during the install.
I used PlexMediaServer-1.24.2.4973-2b1b51db9-x86_64_DSM7.spk for my 918+ but when I launch it looks like it is starting a new server - ie none of my old stuff.
Please help!
I was asking precisely this. So you did have a Plex server with DSM 6. This is what I needed to know.
You never have to create any shared folders with Plex. I do all the work.
So that I don’t make a mistake please (this is very important) –
PlexMediaServer shared folder or Plex shared folder?If you’re getting new stuff and not YOUR STUFF 
( sounds like George Carlin haha)
Plex/Library/Application Support/Plex Media Server
What probably happened (which does happen frequently ) you probably hit “Repair”.
In most cases , that would have been OK … This one time, it’s the wrong step.
What are you doing here please?
Are you putting metadata or media on NFS ?
DSM 7 wouldn’t break your NFS mounts.
The MOST you would need to do is
PlexMediaServer permission to read your media.This is provided in the instructions printed as PMS finished installing.
15.91 GB of storage is in PlexMediaServer and the shared folder has no description.
27.10 GB is in Plex with the description “Plex metadata storage.”
Well, this is a problem.
The “Plex” shared folder is leftover from DSM 6
The “PlexMediaServer” shared folder is new.
DSM 7 creates the shared folder . That’s why it has no description.
In your server right now - Do you have all your media & metadata or is a lot missing?
I am trying to figure out which shared folder is valid.
I’ve random checked some movies/shows/music and test photos from various libraries and they where all available and played via “Plex for Mac” without any problem.
I also scanned all libraries and haven’t seen any red trash icons. (Checkbox “empty trash after every scan” is disabled because I have some movies on a external 3.5" HDD).
Also my modified description from a demo library is visible and the “description” field is still locked.
