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Forum FAQ: File Share “Scoping” in Windows Server 2008 Failover Clusters.

    General discussion

  • Question

     

    In Windows Server 2003, there was no 'scoping' of file shares. Files shares hosted by Windows Server Cluster resource group will be displayed when a connection is made to the NetBIOS or FQDN name or IP address of the cluster node. However, this access method does not work in Windows Server 2008 R2.

     

    Answer

     

    Implementing highly available file servers in Windows Server 2008 is very different from how it was done in previous versions of Microsoft's clustering technology. One of the new pieces of functionality implemented in highly available file servers is 'scoping' of shared folders. What this means is when a shared folder is created in a Windows Server 2008 Failover Cluster, it is not only associated with two other resources in the same resource grouping - a Client Access Point (CAP) and a File Server Resource, but it will be accessible only by way of the Network Name resource which is one of two components of a Client Access Point (CAP) (the other being an IP Address).  In Windows Server 2008 Failover Clusters, shared folders are now associated with a File Server resource and are 'scoped' to the Network Name resource which is part of a Client Access Point (CAP). You will not be able to access a file share which is created on the cluster node itself via the cluster network name or IP address.

     

    Because of this new functionality, end users must rethink file share access when those shares are hosted in a Failover Cluster. Accessing file shares in a Windows Server 2008 Failover Cluster using SMB must be by way of the Network Name resource which is part of a cluster Client Access Point (CAP). Methods that previously used IP addresses or DNS CNAME records will not work.

     

    More Information

     

    For more information, please refer to the blog of “Chuck timon”:

     

    File Share 'Scoping' in Windows Server 2008 Failover Clusters

    http://blogs.technet.com/askcore/archive/2009/01/09/file-share-scoping-in-windows-server-2008-failover-clusters.aspx

     

     

    Applies to

     

    Windows Server 2008

    Monday, February 22, 2010 6:12 AM