Home Forums SQL Server 2008 SQL Server 2008 High Availability question on cluster private and public network RE: question on cluster private and public network

  • August 2, 2014 at 2:26 pm

    #1734636

    When the private network goes down cluster communications will carry on through the public network. Loss of a private network does not initiate a failover. The loss of the public network will initiate a failover since this is the network clients connect through.

    Hi Perry,

    Thanks for the reply. Just a question on top of it to make sure whether I understood correctly or not.

    Now say, If I have a 2 node cluster (N1 and N2), and I have 2 dedicated NICs, one for only private network and one for only public network only. quorum model is Node+Disk witness as it is even number of nodes.

    Assume, N1 is am active node and now if private network fails on N1, then what happens?

    I am assuming that since N1 is not able to communicate with N2, it loses the cluster membership, cluster service is stopped on N1 and a fail-over is initiated to N2 and before that Quorum is recalculated and if I have 2 votes then I would fail-over to N2. Is that correct?

    Pl correct me if am wrong Perry.

    Thank you.