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  • Memory Use

    Hi Guys,

    Just a quick one.........

    We have a client whos using Exchange Server 2007 with SP1, the server did have 8Gb of RAM, all 8 was being used! there is about 50 odd users.

    I asked the hosting center to upgrade the RAM from 8Gb to 16Gb but for some reason they put in 32Gb of RAM!!! but anyway.........my problem is store.exe is using 27gb!!!!!!

    Is there some form of memory leak or something!

  • #2
    Re: Memory Use

    Nothing to worry about. This is normal behaviour for Exchange 2007 SP1. Should the system need additional memory, Exchange will give it back.

    Comment


    • #3
      Re: Memory Use

      can i put a cap on how much it uses.........say 20Gb?

      I am sure I just saw another post about 10gb of ram using ADSI?

      Comment


      • #4
        Re: Memory Use

        Not sure myself but in my opinion, there is no need to. Exchange will give back memory if the system needs to, so there won't be a performance hit for the server it sits on.

        One of my clients has an Exchange 2007 server with 100 mailboxes and only 4 GB of memory.

        Comment


        • #5
          Re: Memory Use

          Why do you want to cap it?
          You bought that memory to be used?
          If I had a 32gb machine and Exchange was only using 10gb then I would be disappointed. I want it to be using at least 30gb, otherwise I have wasted a lot of money on RAM.

          Exchange, by design, will attempt to use whatever RAM is available. When something else requests memory use it will give it back.

          Simon.
          --
          Simon Butler
          Exchange MVP

          Blog: http://blog.sembee.co.uk/
          More Exchange Content: http://exchange.sembee.info/
          Exchange Resources List: http://exbpa.com/
          In the UK? Hire me: http://www.sembee.co.uk/

          Sembee is a registered trademark, used here with permission.

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          • #6
            Re: Memory Use

            atm its using 31Gb of now!

            server runs like a dog!

            I only want to put a cap on of 20gb or so.

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            • #7
              Re: Memory Use

              I've heard of similar problems with exchange 2007 where Memory manager fails to release physical memory when requested by other services.

              You can restrict it with ADSIedit as per this: http://mostlyexchange.blogspot.com/2...ange-2007.html

              However this is neither supported nor recommended by MS i think.
              Caesar's cipher - 3

              ZKHQ BRX HYHQWXDOOB GHFLSKHU WKLV BRX ZLOO UHDOLVH LW ZDV D ZDVWH RI WLPH!

              SFX JNRS FC U6 MNGR

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              • #8
                Re: Memory Use

                I've already tried this but the "msExchESEParamCacheSizeMax" is not listed

                any reason why?

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                • #9
                  Re: Memory Use

                  Have you got permission to edit Exchange configurations?
                  Here is a technet article about setting the maximum size of the database cache as well: http://technet.microsoft.com/en-us/l.../bb691304.aspx
                  Caesar's cipher - 3

                  ZKHQ BRX HYHQWXDOOB GHFLSKHU WKLV BRX ZLOO UHDOLVH LW ZDV D ZDVWH RI WLPH!

                  SFX JNRS FC U6 MNGR

                  Comment


                  • #10
                    Re: Memory Use

                    I have also followed that technet and the "msExchESEParamCacheSizeMax" still isnt listed

                    Comment


                    • #11
                      Re: Memory Use

                      What else is on the machine?
                      If Exchange is not releasing RAM then that is usually caused by third party interference, antivirus or antispam is the usual cause. I have never had to limit the RAM because Exchange should manage the memory on its own.

                      Rather than limit the RAM use, find out why it isn't behaving itself. If there are third party tools, then remove them and reboot the server.

                      Simon.
                      --
                      Simon Butler
                      Exchange MVP

                      Blog: http://blog.sembee.co.uk/
                      More Exchange Content: http://exchange.sembee.info/
                      Exchange Resources List: http://exbpa.com/
                      In the UK? Hire me: http://www.sembee.co.uk/

                      Sembee is a registered trademark, used here with permission.

                      Comment

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