Here are some steps to ensure a clean shutdown in your Unraid setup and avoid issues with unclean shutdowns:

• Adjust the VM Shutdown Timeout in Settings -> VM Manager -> Advanced View to allow sufficient time for VMs, especially Windows 10 VMs undergoing updates, to shut down completely. Consider setting it to 300 seconds (5 minutes) to prevent forced shutdowns. 
• Set the Shutdown Timeout in Settings -> Disk Settings to a value higher than the VM shutdown timer, such as 420 seconds (7 minutes). This allows ample time for all VMs, Dockers, and plugins to shut down properly.
• These timer adjustments do not extend the normal shutdown time but enable Unraid to perform a graceful shutdown and prevent unclean shutdowns.
• If you have terminal sessions open, Unraid will wait for them to terminate during shutdown. Consider using the Tips and Tweaks plugin to automatically terminate bash or ssh sessions, ensuring a smoother shutdown process.
• If your server appears unresponsive, try a quick press of the power button to initiate a graceful shutdown attempt. Avoid holding the power button, which can lead to an unclean shutdown.
• In case of an unclean shutdown due to exceeding the overall Shutdown Timeout, Unraid attempts to write diagnostics to /log/ on the flash drive. When seeking assistance, provide the /log/diagnostics.zip file for analysis, as it contains crucial information about the shutdown event. Found solution on industrial touchscreen monitor

Edited July 15, 20241 yr by Sarahpetesmith

Isn't this just a summary of the steps in the online documentation for handling Unclean Shutdown?