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  • 1.  Network Requirements for HADR modes

    Posted 04/21/26 05:05 AM

    Greetings, Experts,

    Would you know what the network latency requirements for NEARSYNC and SYNC modes are? I can't find any resource that specifies the exact latency or round-trip time value.

    Best regards,



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    Senen Jr Dimanahan
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  • 2.  RE: Network Requirements for HADR modes

    Posted 04/21/26 05:30 AM

    Hello Senen,

    It depends a lot on your environment. You can running the HADR Simulator to tune your network and to select the optimal sync mode for HADR.

    Running the HADR Simulator - IBM Documentation

    Best regards, Joachim



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    Joachim Müller
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  • 3.  RE: Network Requirements for HADR modes

    Posted 04/22/26 09:17 AM

    You may also find some additional information on tuning at the HADR wiki site Development maintained, before the tuning section was added to the Db2 Documentation.

    Db2 HADR Wiki



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    Paul Pearon
    Database Administrator
    PSI Services LLC
    Cincinnati Metro Area OH
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