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High CPU & RAM Usage on SBS server 2011 Premium running SQL

Posted on 2013-06-12
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Last Modified: 2016-02-21
Hi all,

We have an issue with a SBS server running SBS 2011 Premium with SQL and Exchange.

When we terminate 2 of the 3 Sqlservr.exe in the Task Manager the CPU usage dropped from about 75-85 % average to 10-20% average and the RAM usage drops from 90% to about 50%

The 2 SQL databases are WID/MS##SSEE & SBSMonitoring (by looking inside the SQL Server Configuration manager).

Any suggestion to the high CPU and RAM usage?
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Question by:iadvice
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LVL 22

Expert Comment

by:David Atkin
ID: 39240923
Hello,

SQL and Exchange tend to use as much memory as they can get their hands on.

You can manually set limits on the SQL Server to only use a certain amount of memory:

SQL Memory Limit:
http://msdn.microsoft.com/en-us/library/ms178067.aspx

Exchange Memory Limit:
http://www.bursky.net/index.php/2012/05/limit-exchange-2010-memory-use/



Note:
I haven't tried this myself
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Author Comment

by:iadvice
ID: 39240934
Thanks -Scorpeo- for the input

Do you know if the same thing could be used for the CPU usage?
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LVL 22

Expert Comment

by:David Atkin
ID: 39240976
Because you have full SQL, you can do this with Resource Governor.  Have a look here:

http://msdn.microsoft.com/en-us/library/bb933866.aspx
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LVL 12

Expert Comment

by:Gary Coltharp
ID: 39244486
What are your machine specs? I agree that these processes will use as much RAM as they can see....but high CPU utilization is not normal. My SBS boxes rarely go over 8% utilization.
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Accepted Solution

by:
iadvice earned 0 total points
ID: 39252426
Hi

We found out that the SBSMonitoring-database was one of the databases utilizing many resources, so we tried to recreate the database as of this technet-article:

http://blogs.technet.com/b/sbs/archive/2011/08/22/how-to-recreate-the-sbsmonitoring-database.aspx

which seems to have worked on the resource utilization on this database, but we are still monitoring.

We've also uninstalled WSUS which wasn't used, which definantly had an impact on the CPU after uninstall

As of now, we are monitoring the server, but it looks like we are going in the right direction.

I'll be back in a couple of days when we've have had some time for monitoring
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Author Closing Comment

by:iadvice
ID: 41474229
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