flymcb

As MowMdown suggested, it was most likely a docker or plugin. Since the issue was persisting with docker offline, it had to be a plugin. I removed the majority of my plugins and the issue has stopped. I tried doing a couple at a time, but ran out of time. Here is the list of dockers that were removed from my server: appdata.backup.plg - 2026.03.13 (Up to date) ca.update.applications.plg - 2026.04.14 (Up to date) disklocation-master.plg - 2026.06.02 (Up to date) dlandon.cache.dirs.plg - 2025.03.06 (Up to date) docker.versions.plg - 2026.03.06 (Up to date) dwmemtester.plg - 2025.08.21 (Up to date) dynamix.file.integrity.plg - 2025.11.14 (Up to date) dynamix.system.temp.plg - 2025.11.14 (Up to date) file.activity.plg - 2026.05.03.0212 (Up to date) folder.view.plg - 2025.01.11.1 (Unknown to Community Applications) gpustat.plg - 2026.05.19 (Up to date) open.files.plg - 2025.10.04a (Unknown to Community Applications) parity.check.tuning.plg - 2026.04.24 (Up to date) unRAID6-Sanoid.plg - 2.3.0 (Up to date) zfs.master.plg - 2024.12.09.104 (Up to date) Spin down behaviour is now back to normal. From some of my searching online, I think the problem may have been ZFS Master, but I haven't had the time to continue adding back these plugins and see if the problem comes back. Do you have any of these in common?

Besides shutting off one by one, do you have any recommendations of where to look in the diagnostics or terminal to figure out which one is the problem? I tried htop but couldn't see anything that stood out

Thanks for the info. I may have underestimated when the issue started, so I only downgraded to 7.3. I'm hoping to help find the bug in my case, but may need to try the same

I just tried and yes, they spin down (and remain down) in maintenance mode.

I have recently found that the disks in the array are not staying spun down. When I force a spin down, or when they automatically spin down after 15 minutes, they will soon after spin up again. I have tried to see what files are causing it, but there isn't any activity that is correlated in the file activity monitor plugin. I have changed all docker paths to cache/appdata. The behaviour has been good until recently. I tried downgrading to 7.3 from 7.3.1, but saw no difference, so I updated back to 7.3.1. When I look at 'Main' page, I do not see any reading/writing that should be causing a spin up. They are also running warm. Any help would be greatly appreciated! Diagnostic files attached. Edit to add - I have tried stopping all dockers, but they continue to wake themselves. tower-diagnostics-20260605-2034.zip