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my friend's company has a win2008 server, not R2, and it's really slow, it has 8G ram, has a SAP business one running on it, and it's also an AD, DHCP, DNS server, has Kaspersky 6 AV running as well. CPU usage is constantly 100%, physical memory is around 70%-90% even close everything, disable AV, if check processes, taskmgr.exe and windows explorer use like 40% each sometimes, do you have any suggestion what could be

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4 Answers 4

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Yes.

  • Does it run SQL Server? Basically, does the AV package scan the database tables? That is a typical beginner / noop error.... they are constantly changing, every chagne triggers the av package.

  • Same for temp work directories, log files etc.

Basically anti virus ? heavy writing server = desaster. Db servers are VERY tricky on that as they write every change into the log files IMMEDIATELY (incl. flushing the drive caches to ensure it is persistent) and the files are large. This is constant rescanning of large files.

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  • Thanks very much for the quick response, so what's your suggestion for the server that has sql dabase running, is it just excluse the sql folders or not run av at all, and disable any shared folers, thanks.
    – andytimmons
    Mar 18, 2011 at 0:02
  • Technically neither nor. All you need to exclude are all database files (mdf, ndf, ldf). In "real" serers they wont rely in the sql folders because thy are on separate discs. That said, a PURE sql server only has the admin folders and disc related foldes open anyway. disc blob storage is disputable (normally not so io heavy). Most people I know opf dont run ANY av on a server that has no user based files on it / no user disc access. But if you have to, at least make sure the database related files are not checked.
    – TomTom
    Mar 18, 2011 at 4:47
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Is the AD server being used when this occurs?

Also, could you tell me some other specs, especially How many cores does the CPU have and at what speed does it run at?

From my knowledge,

It could be an issue with a broken windows account. So I'd try creating or just logging in with a new/different account

There is a problem with windows7 / 2008 r2 where broken .wav files can cause a lot of load in explorer.exe but since you mentioned not having r2 it couldn't be that...

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  • it's my friend's company's server, the other day I had a quick look, I believe it's duo core e4500, I'm not 100%, but it's bought at mid of 2008. They had administrator account logged in all the time, with SAP, Filemaker, av open. Yes, AD is being used for user authentication
    – andytimmons
    Mar 18, 2011 at 0:20
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Uninstall Kapersky and reevaluate the server. If I recall a colleague had issues with K6 and removing it solved the problem. If this works then check the Kapersky website for possible solutions.

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  • Thanks for the comment, they were about to uninstall KASPERSKY,but realised they probably lost the key, they still remember the admin passwd for AV though, could they just uninstall the software, leave the config data, and when they reinstall, they wont need the key. Also since it's the av server, would uninstallation cause any drama for their av clients on all the PCs, again thanks for your help
    – andytimmons
    Mar 18, 2011 at 0:12
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You have many roles installed on that one server. I would recommend installing additional Windows 2008 as a VM, using hyper-v or oracle Virtual Box and install only Kaspersky on that server. This will provide load balancing and the performance of your DC will run as normal.

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