November 24, 20241 yr Friends, I have been trying to figure out why this Unraid server keeps shutting down randomly. I have looked through the log files and cannot find anything that stands out to me. My rig has dual power supplies, one of which is on a UPS. Even so, the server shuts down as if someone pulled the power cords. Attached is the current log file but I have had syslog writing to the USB, if you need those logs. I am at a loss and not sure where to go from here. Suggestions? server-diagnostics-20241123-2115.zip
November 24, 20241 yr Community Expert Post the persistent syslog just to confirm there's nothing initiating a shutdown, but a server shutting down on its own is almost always a hardware issue, or an external factor, like bad power.
November 25, 20241 yr Community Expert Nothing about a shutdown logged, so most likely a hardware issue.
November 25, 20241 yr Author Diagnosis step 1: I'd like to ask a question to make sure that I'm not assuming incorrectly. Would you suggest starting with the power supplies? My rig has redundant power supplies. One is plugged directly into the wall and the other is connected to a UPS. Feel free to correct me if I'm assuming wrongly but would not the backup battery keep me going on one power supply if one of the power supplies was faulty or not powerful enough to handle the load? It seems astronomically unlikely that both power supplies would be failing at the same time. In the process of trying to hunt down this problem, I noticed that the UPS that I'm using has a 600 watt Max but my processors can pull to 900. If the server is pulling too much on the UPS, would not the power supply plugged directly into the wall keep everything going? Diagnosis step 2: Before this random shutdown issue began, I changed two things. (I know, the troubleshooting demons come out when you change more than one variable.) I upgraded both processors in my server and upgraded Unraid to the latest version. Any suggestions on testing if the processors are the issue? I know enough to be dangerous so I thought I would reach out to people who know more than I do. Thanks ahead of time for the input.
November 25, 20241 yr Community Expert I would start by checking the CPU temps, overheating CPUs will shutdown the server.
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.