DSAMAIN.EXE 100% CPU load


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Thread: DSAMAIN.EXE 100% CPU load

  1. #1
    Kris Guest

    DSAMAIN.EXE 100% CPU load


    Here at my site we are running Exchange 5.5 SP4 on a clustered NT Enterprise
    system with SP6a. We are also running a separate OWA/IIS 4.0 machine hosting
    3 other OWA sites (3 published websites pointing to other OWA servers across
    the globe). The OWA/IIS 4.0 machine is running on a PIII-450MHz w/ 512Meg
    RAM with NT 4.0 SP6a and Exchange SP4. The problem is, somewhere between
    1 - 2 hours of booting up, the Directory Service executable, DSAMAIN.EXE
    starts chewing up 100% of the CPU. Several things have already been tried...
    including all the fixes on Microsoft's TechNet. Re-installed SP6a, Exchange
    SP4, turned off Address Book recalculation views when receiving syncronization
    messages, etc. This has stumped me and the other administrator working on
    this machine. Any suggestions or possible fixes? Thanks in advance.

    Kris


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  2. #2
    Craig Guest

    Re: DSAMAIN.EXE 100% CPU load


    Kris,

    Had the same problem. One question did you run PERFORMACE OPTIMIZER after
    the SP4 upgrade ? If not, do it, you'll be suprised.

    Craig


    "Kris" <kgutcheon@multek.com> wrote:
    >
    >Here at my site we are running Exchange 5.5 SP4 on a clustered NT Enterprise
    >system with SP6a. We are also running a separate OWA/IIS 4.0 machine hosting
    >3 other OWA sites (3 published websites pointing to other OWA servers across
    >the globe). The OWA/IIS 4.0 machine is running on a PIII-450MHz w/ 512Meg
    >RAM with NT 4.0 SP6a and Exchange SP4. The problem is, somewhere between
    >1 - 2 hours of booting up, the Directory Service executable, DSAMAIN.EXE
    >starts chewing up 100% of the CPU. Several things have already been tried...
    >including all the fixes on Microsoft's TechNet. Re-installed SP6a, Exchange
    >SP4, turned off Address Book recalculation views when receiving syncronization
    >messages, etc. This has stumped me and the other administrator working on
    >this machine. Any suggestions or possible fixes? Thanks in advance.
    >
    >Kris
    >
    >


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