Something is causing my server to crash twice a day

40 pts.
Exchange performance
Microsoft Exchange 2003
for months now around 11 and 3 each day, well almost every day, something fires up on the server and eats up the server and I have to reboot because we lose the Internet and Email....server is the Exchange server and domain controller...Server 2003.....there are no scheduled tasks set to run......I look at the processes and nothing that isn't supposed to be running is running....anyone have any suggestions??

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Check out the event logs before the reboot event. There are some scheduled events in Exchange that might be running like some indexing or clean up activities. It is also not a good idea to run Exchange on the DC unless you are running Small Business Server.

I have seen 3rd party agents, specifically Backup Exec remote agent, cause similar problems. I actually run a scheduled task to stop and start the remote agent on a regular daily schedule to keep it in line. Also had problems with some 3rd party replication software.

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  • mshen
    Check the event logs. Is an application erroring out? You should also check the processor usage and when people are using the server most.
    27,385 pointsBadges:
  • Technochic
    Run your performance monitor during those times. Check processor, memory, pages per sec, network usage, connections and there are probably more I should be listing here, but start there. Run it first for an hour or so during normal times to get a good baseline so you can see better what is happening during the problem hours.
    57,010 pointsBadges:
  • Flame
    I had a similar issue with a small accounting firm I did some consulting for several years ago, their server would crash almost every Saturday, usually around the same time in the evening. I was there one evening when it happened. In addition to the system going down, there was a barely perceptible flickering in the office lighting that happened for sometime afterward. It seems that in the next building over, the owner was using a rather large arc welder to create "art". He told me he did this "hobby" on most Saturday evenings to relax... We added an APC UPS and that seemed to solved the problem. Good Luck! -Flame
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