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Memory Allocation

  • September 16, 2008 at 11:26 am

    #154732

    Hi,

    Let's describe the environment:

    3 cluster nodes (active-active)

    Memory on each node is 64 gig.

    Windows Server 2003 R2 Enterprise x64 SP2

    How the memory allocation will be on each node (64 gig or 64/3, I assume each node has one SQL Server Instance)

    Regards,

    Ahmed

  • September 16, 2008 at 1:46 pm

    #872664

    It depends. Do you need every clustered instance to work the same if there is a failover? If so, then 64/3 makes sense. If you assume failovers are rare and can live with slightly lower performance, I'd go with 32 on each server and assume that you'll never have more than 1 failure. Or you could assign more and just have less resources for the failed instance.

  • September 17, 2008 at 8:13 am

    #873028

    Thanks Steve,

    I have just another concern, if we add new instances on each node, so the memory on each node will be shared between instances I think so.

    Ahmed

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