Server restarting, nothing in logs, ideas?
Posted on 2007-03-26
I have a server that is restarting for no apparent reason with nothing in the logs to explain it. The server is brand new with Windows SBS 2003 on it, I did a SwingMigration to it a couple of weeks back.
The server is a HP DL380 G5. I swapped the server out with a brand new one last week (complete new server except the processor and hard drives) but the problem is still happening, random restarts once or twice a day. It happens at different times, sometimes the middle of the night, sometimes in the morning, sometimes in the evening etc. Server is connected to an APC UPS (which is a couple of years old), but the APC managment software shows no "power events".
I see nothing in the logs, just the usual event saying the server restarted unexpectedly. No memory dump files, so I'm guessing it's not blue screening. Been searching the drives for files modified around the time of the restart, nothing obvious.
The fact that it's restarting so "silently" definitely says to me a likely hardware problem, but the only original parts are the UPS, the CPU and the drives (x5 146gb SAS drives, RAID5). It's a dual CPU server and the CPUs are brand new so I'm not too inclined to suspect the CPU but let me know if this is a bad assumption. I don't think the drives would cause a restart like this. That leaves the UPS or Windows itself. Any thoughts? I can get somebody to plug the server directly into the mains instead of into the UPS but I'd like to have other plans prepared.
So I'm just looking for feedback on what you'd try to identify the cause of the restarts, first impressions etc. All thoughts appreciated! Thanks!