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cluster quorum RRS feed

  • Question

  • Hi I am basic conspcet of clusters like what is difference between odd and even Cluster, types of quorum which secanrio used each quorum settings, it is possible to change quorum types after Cluster setup?
    Wednesday, January 27, 2016 3:50 PM

Answers

All replies

  • There is lots of information available via TechNet to answer broad questions like this.  For example, http://blogs.msdn.com/b/clustering/archive/2011/05/27/10169261.aspx is a good blog to help you understand how quorum works within a cluster.  It is a little dated, but the concepts are basically the same.  A new feature of quorum that came in Windows Server 2012 R2 is the concept of a dynamic witness that adjusts the quorum dynamically - https://technet.microsoft.com/en-us/library/dn265972.aspx#BKMK_Witness

    Yes, it is very simple to change the witness type after the cluster has been configured.  You can easily move among no witness, disk witness, or file share witness.


    . : | : . : | : . tim

    Wednesday, January 27, 2016 10:08 PM
  • Thanks it is possible to restore quorum settings? 
    Thursday, January 28, 2016 8:50 AM
  • What 'quorum settings' are you talking about?  Quorum is a voting model used by the cluster to determine if it has enough components to continue operating without endangering data.  Witness disk or share can be added/removed without changing how the cluster determines quorum.  Adding/removing a witness simply changes the number of votes required for a quorum.

    Did you read the articles I referenced in the first answer?  Please read those.  Then, if you have a specific question about the content, please ask.


    . : | : . : | : . tim

    Thursday, January 28, 2016 1:51 PM