From Plex Media Server.log:
Dec 28, 2025 06:38:55.423 [139802771598136] ERROR - [Notify] Failed to add watch for "/volume2/DVR/Music/Tunage zero/The Cure/The Head On The Door" (28: No space left on device)
...
Dec 28, 2025 04:20:30.000 [139796151683896] ERROR - [Req#225daf/Transcode/6be486b3-fe4d-45a1-bced-b14554124401/7419d6be-1224-4325-9f70-a6ed5f4ab905] [eac3_eae @ 0x7fd37e4f4680] EAE timeout! EAE not running, or wrong folder? Could not read '/var/packages/PlexMediaServer/shares/PlexMediaServer/AppData/tmp/pms-9e387ae1-d8d9-482f-826a-80567174cb30/EasyAudioEncoder/Convert to WAV (to 8ch or less)/6be486b3-fe4d-45a1-bced-b14554124401_9788-0-3638.wav'
Dec 28, 2025 04:20:30.001 [139796115938104] ERROR - [Req#225db0/Transcode/6be486b3-fe4d-45a1-bced-b14554124401/7419d6be-1224-4325-9f70-a6ed5f4ab905] [eac3_eae @ 0x7fd37e4f4680] error reading output: -5 (I/O error)
You’ve exceeded the number of directories that Linux can monitor (Synology DSM is a highly customized version of Linux).
It can easily happen on Synology NAS when adding a lot of music or photos.
To remedy, follow FAQ 16: Increase the number of folders Plex can monitor.
Be sure to reboot the NAS after changing the limit.
