Been having some very slow transfer speeds to the server this last couple days. Some fast then some real real slow. Today I ran the Fix problems plugin and it found issue that said Error: Call Traces found on your server post diagnostics log to forum for help.
I remember clicking update to Unraid 6.3.0 at the bottom a bit ago and went to shut down and the system is stuck at the moment in the stop button pressed position. At the bottom corner Drives spun up and then it said s