Event ID 906 warnings in Application log
I have a relatively new (installed around 5/15/2011) SBS 2011 server running Exchange 2010. The server is a virtual machine running on an ESXi 4.1 host server, with 12GB of memory and 2 virtual core processors assigned to it. This is the only virtual machine running on this VMWare host, so it is not sharing memory with anything else. This server is also the main file server for this domain; there is one other server that is handling a SQL database and terminal services. I am seeing the following warnings in the Application log on this server frequently - almost every day, sometimes a couple of times a day and sometimes it will skip a day or two. Of course the details vary, but the basic message is the same. It appears that this has been going on since the server was installed: Log Name: Application Source: ESE Date: 7/6/2011 6:54:42 AM Event ID: 906 Task Category: Performance Level: Warning Keywords: Classic User: N/A Computer: Server.domain.com Description: Information Store (7296) A significant portion of the database buffer cache has been written out to the system paging file. This may result in severe performance degradation. See help link for complete details of possible causes. Resident cache has fallen by 16119 buffers (or 15%) in the last 13088 seconds. Current Total Percent Resident: 54% (84671 of 155184 buffers) Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> <System> <Provider Name="ESE" /> <EventID Qualifiers="0">906</EventID> <Level>3</Level> <Task>7</Task> <Keywords>0x80000000000000</Keywords> <TimeCreated SystemTime="2011-07-06T10:54:42.000000000Z" /> <EventRecordID>57552</EventRecordID> <Channel>Application</Channel> <Computer>Server.domain.com</Computer> <Security /> </System> <EventData> <Data>Information Store</Data> <Data>7296</Data> <Data> </Data> <Data>16119</Data> <Data>15</Data> <Data>13088</Data> <Data>54</Data> <Data>84671</Data> <Data>155184</Data> </EventData> </Event> I have never seen this type of warning before, but this is my first time working with Exchange 2010, so I don't know how significant it is. I haven't been able to find any other articles or threads on this issue except for ones that refer to it being a memory problem. This seems logical, except for the fact that this server has plenty of memory for what it is doing, and I can't find anything else consistently that is happening at the same time as these errors that might be temporarily eating up the available physical memory. TIA for any expert advice or ideas.Deb
July 6th, 2011 3:32pm

Running SBS on ESX kind of defeats the purpose of SBS, doesn't it? Have you created a paging file that is at least the amount of the VM's memory plus 100 MB (12,388 MB in your case)?Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."
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July 6th, 2011 4:13pm

Hi Deb, Any updates? Please run the Exbpa in the Toolbox to do a Health Check. Please also use Task Manager, review any running processes for unusually high memory consumption. Frank Wang Forum Support Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com. Frank Wang
July 7th, 2011 8:08am

Hi Deb, Any updates? Frank Wang
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July 11th, 2011 1:34am

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