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Windows Server (Domain Controller) Freeze

Posted on 2010-11-08
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I cannot figure this one out for the life of me. Every Friday night / Saturday morning my dc will freeze up for no reason I can see. It happens between 1:00 am & 1:10 am. I reboot the server and it is fine for the rest of the week. Nothing wrong is being indicated in any of the event logs. The only app I run on that server is websense v 7.1 (also IIS). I run a db download of websense every Sunday when we are not running production. Other than that the only other thing going on is the websense log server (Mon - Sun). I'm wondering if it could be a serivce. My question is can anyone tell me what unnecessary services I can turn off on my dc? Also how else can I trouble shoot this issue when the event logs show no major issues?
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Question by:tmaususer
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by:KenMcF
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follow this article to enable crash on scoll. then it will generate a memory dump

http://support.microsoft.com/kb/244139
http://blogs.msdn.com/b/anandbms/archive/2005/04/20/410225.aspx

I would also check hardware, make sure all firmware and drivers are current.

Any tasks running at that time?
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by:Iain MacMillan
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you haven't said what make/model your server is, but most vendors have a firmware ISO image which can be used to check your hardware is using the latest/fixed code, such as BIOS.  Also your drivers are important, especially the NIC, Video and chipset ones.

it could be a glitch from a patch or update -- do you have an WSUS server or do you just pull your updates from the MS Update site??  Either way, make sure your updates are done, such as browser/flash/java.  Then use a disk defragger such as Diskeeper Server or the free/basic Defraggler to optimise the disks/data.
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by:Radhakrishnan Rajayyan
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Do you have any other site apart from this? If yes...check the replication interval time, it must have set for these 2 days....you can check it from replmon tool...I am not sure..just check once
Also check any weekly AV updates scheduled for this time or any backup scheduled etc..

Hope this helps
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by:tmaususer
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No other sites except this one. I am going to re-verify all firmware, drivers, etc is update to date. My server is an HP Proliant G5 series.
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by:tmaususer
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All firmware and drivers are up to date. I guess the only thing I can do now is wait for this Friday. I will also run task manager to see if anything shows up out of the ordinary.
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by:Iain MacMillan
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might be worth running an anti-malware package such as Superantispyware Portable through your system as a one off - just to make sure there isn't anything lurking in the background.

Good on the HP server, download the relevant Firmware ISO for your server.  Be careful with HDD and RAID controller firmware.
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tmaususer earned 0 total points
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Well it looks like the issue was with Symantec AV.
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by:Iain MacMillan
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glad you got it fixed, but AV software is normally the first thing you check/shut-off, you also made no mention of it being on the server (guess i should have asked).

:)
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by:tmaususer
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I didn't think to make that my first check since it has been running forever with little changes to my d/c. I too will make that first from here on in
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by:tmaususer
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Suggestions posted listed no solution
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