You don’t do the backup over the LAN by copying the files to/from your PC.
Doing so will:
- Take an incredibly long time
- Lose all the date/time stamps on the files
- Lose the ownership and other file attributes
To do the backup
- Stop Plex
- Open PlexData → Plex Media Server in File Station
- Highlight all the files & directories listed (checkbox at the top)
- Right-Click → Compress
- Give it whatever name you want for the ZIP file
- Click OK to start creating the ZIP file
- When it completes, the ZIP will be the perfect backup of all the data
- You may now copy the ZIP file over the LAN to Windows if you wish.
