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Periodic WMI Errors in Windows Server 2003 - MS Exchange SA

Posted on 2009-12-30
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Last Modified: 2012-05-08
About once every 7-10 days, I get a number of the same error in the application event log -
it is event id 9099 Source MSExchange SA Category Monitoring. Description "The MAD monitoring thread was unable to read the state of the services, error '0x80041006'. The eerrors last about a day, and then goes away for another 7-10 days. No changes in config that I am aware of. Any ideas?   Thanks!!
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Question by:bmac10
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Expert Comment

by:Dan Arseneau
ID: 26146248
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Author Comment

by:bmac10
ID: 26146604
Thanks fr the reply. I looked at the thread. As this is a periodic event - happens every 7-10 days last fr about 18-24 hrs and "goes away",  do you think the re-registering the namespace would help?
Thanks!
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Expert Comment

by:Dan Arseneau
ID: 26146734
The article I pointed you to mentions that this was from a memory issue.  Do you have enough resources on that box?  The times you mention make me think of a backup schedule.  Could be that when a backup kicks in, the available memory on that server is cut short causing that error.
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Author Comment

by:bmac10
ID: 26146840
good point. The system does have 4gb of RAM and I monitor all of the systems parameters. When you say resources do you mean real/poaged memory or Windows resources?

Thanks!
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Expert Comment

by:Dan Arseneau
ID: 26147084
I'm talking physical RAM.  4 GB is not enough to run Exchange 2007 (mailbox role).  I wouldn't run on anything less than 8 GB.

If this is Exchange 2003, make sure you have the /3gb and userva switches set in the boot.ini.
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Author Comment

by:bmac10
ID: 26147969
The system is Win Server2003 Std and Exch Server Ent 2003. 4gb is the max the system can address. I do have the /3gb switch set in boot.ini

Thanks again for your help!
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Expert Comment

by:Dan Arseneau
ID: 26148352
Check this MS KB http://support.microsoft.com/kb/810371.  It explains the use of /3GB and /USERVA=3030.
How big is your environment?  User count?  SG/DB count?

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Author Comment

by:bmac10
ID: 26170584
Thanks Dan and Happy New Year.
The /3gb switch was set but I don't think the userva=3030 was set. Would that cause this kind of problem, and would there be some event id (other than 9099) that would indicate it? This is (for me) a large install, with 2 back end servers and @ 800 users. Total info store across 5 stores on this system is @ 800gb.

Thanks!
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Expert Comment

by:Dan Arseneau
ID: 26171124
Happy New Year to you also.  The following article is the best way to optimize Exchange 2003.  Considering there's only 4gb to work with, the options are limited.  Check it out.

http://support.microsoft.com/kb/815372
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Author Comment

by:bmac10
ID: 26174359
Thanks Dan -
Gettingback to my original problem - do you think there may be a link between the periodic wmi errors and memory, and would there be something I could look at while I'm getting the errors? - i.e. mem used/avail, etc?
Again Thanks!
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Expert Comment

by:Dan Arseneau
ID: 26174518
Considering it's only periodic, makes me think of processes running at that time.  First and easiest way I think is to try Solarwinds free Exchange monitoring tool.
http://www.solarwinds.com/register/registration.aspx?program=825&c=70150000000DsoT&CMP=LEC-PRT-CPUK-Body-EI-DL
I haven't played with it myself but it looks good.  I was on Exchange 2007 before they came out with it.

Otherwise, if you are ok with Perfmon, use the following counters into a log for a few hours around the problematic timeframe:
http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Server/2003_Server/Q_22515941.html
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Author Comment

by:bmac10
ID: 26175049
Thanks - I monitor the system with N-Able and I can track many different processes/parameters. Any specific ones I should be looking at?
Thanks!
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Expert Comment

by:Dan Arseneau
ID: 26175313
Memory \Available Bytes - Greater than 10 MB
Memory \Pages Sec - Not more than 50 \ Sec
Memory \Pool Nonpaged Bytes - Above 100 MB indicates a problem
Memory \Free System Page  
Process \Store \ Virtual Bytes - Less than 2.5 GB
MSExchangeIS \ VM Largest Block size More than 150 MB (150,000,000 bytes)

Check for new processes when the problem shows itself.
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Accepted Solution

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Dan Arseneau earned 2000 total points
ID: 26175385
bmac10 keep the following in your pocket:

CMD prompt
wmiadap.exe /f
net stop & net start winmgmt

/f - Parses all the performance libraries on the system and refreshes the Performance Counter Classes.
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Author Closing Comment

by:bmac10
ID: 31671228
Thanks Dan! I appreciate your help in this issue. Have a Great New Year!
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