My PMS that I am running on a Raspberry Pi 4 with a 2tb external hard drive will not turn off after some time of inactivity. Is there something I need to change in settings to stop it from always running such as changing it from scanning automatically?
What Plex stuff are you storing on that drive? I have an external drive with just my media and it does go to sleep. If you’ve moved your PMS data folder there, then it likely won’t sleep since the log files are constantly being written.