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  • 1.  Windows 2008 R2 Enterprise VM + Memory Usage is High (Always 90%-95%)

    Posted Jun 19, 2014 06:26 AM

    Hello All,

    We have one Virtual Machine installed with Windows 2008 R2 Enterprise, and the memory assigned to this VM is of 8GB. This VM is installed/configured with vCenter Server, vCenter Single Sign-On, and vCenter Inventory Service along with the SQL DB, and we do not want to migrate/move any application to other server. Number of Hosts managed by this server is 25 ESXi host which are further hosting more than 200+ VM's .As per the VMware KB article "http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2021202" it suggests for 10 GB of Memory as a best practice. So I just want to know is their any configuration settings we can execute in order to reduce the memory utilization. Increase of Memory I want to keep it as the last resolution.

    Any inputs will be great help to us.

    Thanks,
    Samojit



  • 2.  RE: Windows 2008 R2 Enterprise VM + Memory Usage is High (Always 90%-95%)

    Posted Jun 19, 2014 09:02 AM

    Although there might be options to limit memory usage for e.g. SQL Server ..., I wouldn't do this. There are several processes like Java, Web Server, ... running on the vCenter Server which just require memory to run properly. With 200+ VM's I think there should be sufficient physical memory to assign the recommended (supported) amount of memory to vCenter Server to avoid issues due to a lack of memory!?

    André



  • 3.  RE: Windows 2008 R2 Enterprise VM + Memory Usage is High (Always 90%-95%)

    Posted Jun 20, 2014 05:16 AM

    Thanks A.P. for your inputs ...



  • 4.  RE: Windows 2008 R2 Enterprise VM + Memory Usage is High (Always 90%-95%)

    Posted Jun 19, 2014 02:32 PM

    A majority of your memory is also probably going to SQL, SQL by nature tries to cache as much memory as it can get its hands on in the event it needs to use it.  Exchagne does the same thing.  However like the pervious user stated I would just bumped the memory to 10GB and let vCenter sort its self out, or break out the roles a little by having a differetn server for SQL then your vCenter, ect, ect

    Hope this has helped



  • 5.  RE: Windows 2008 R2 Enterprise VM + Memory Usage is High (Always 90%-95%)

    Posted Jun 20, 2014 05:16 AM

    Thanks JPM300 for your inputs ...