Thank you for responding @trumpy81.
The first article says “For your operating system, make a backup of the main Plex Media Server data directory. The location will vary by platform” and has a link to the second article where it gives the statement: “Synology, Asustor: /Volume1/Plex/Library/Application Support/Plex Media Server/” for the path.
I had stopped Plex first as stated, and compressed Library using 7-Zip (from a W10 box) and that’s where all the access denied comes in.
Very specifically, the only files denied are the files without file extensions at the very end of the path: \NAS\Plex\Library\Application Support\Plex Media Server\Metadata\Albums\0\0b04c7d5d1d90811b0dab4d503f899bc3d40255.bundle\Contents_combined\posters or \lyrics, or maybe others, but not TV or Movies that I’ve seen.
e.g. 1: \NAS\Plex\Library\Application Support\Plex Media Server\Metadata\Albums\d\0e30eeeee1f1a307ff0185b48d05b0509ef0fe1.bundle\Contents_combined\tracks\a678258970f1b8547c31f55aa3121fb2bd9c8920\lyrics\com.plexapp.agents.lyricfind_41b4356045645c65d852e09ea2ab327f29238148
e.g. 2: \NAS\Plex\Library\Application Support\Plex Media Server\Metadata\Albums\0\6d88cbd9a30b987155b98301cc913d7d9423d0d.bundle\Contents_combined\posters\com.plexapp.agents.lastfm_c3fe9fab84f04b8f5aecf15b66f2ff24553792df
All files and folders above these are set as I wanted using the DSM control panel as both specified in my post, and you’re helpful instruction (DSM isn’t kicking an error, running as Admin).
I not only used R/W, but Custom, giving Domain Admins Group, and my specific user All R/W, and Administration/Ownership and watched the changes affect every single file/folder up and down the path except the ones being denied at the very end of the metadata path.
Since all permissions are perfect everywhere else, my plan is to not worry about it, zip up the files, ignore the errors, get the rest of the data including preferences.xml, throw that zip into the offsite backup rotations, and if a restore is ever necessary, then with the DBs in tact and the preferences, the only thing that will be missing is some of the metadata that can be downloaded again.
I’m not 100% certain if that logic is a correct assumption though. ?
These person(s) had similar issues: Migrating Metadata from Synology to Windows 10
