Topic Last Modified: 2010-11-08

Lync Server 2010 Directors can be single-instance servers or they can be installed as a load-balanced pool of multiple Directors for higher availability and capacity. Both hardware load balancing and Domain Name System (DNS) load balancing are supported. This topic explains how to configure DNS load balancing for Director pools.

To successfully publish, enable, or disable a topology when you add or remove a server role, you should be logged on as a user who is a member of the RTCUniversalServerAdmins and Domain Admins groups. You can also delegate the proper administrator rights and permissions for adding server roles. For details, see Delegate Setup Permissions in the Standard Edition server or Enterprise Edition server Deployment documentation. For other configuration changes, only membership in the RTCUniversalServerAdmins group is required.

To define the Director (single instance)

  1. Start Topology Builder: Click Start, click All Programs, click Microsoft Lync Server 2010, and then click Lync Server Topology Builder.

  2. On the welcome page, click Download Topology from Existing Deployment.

  3. In Save Topology As, type the name and location of the local copy of the existing topology, and then click Save.

  4. Expand the site in which you plan to add the Director, right-click Director pools, and then click New Director Pool.

  5. In Define the Director pool FQDN, do the following:

    • In Pool FQDN, type the FQDN for the Director pool.

    • Click Single computer pool, and then click Next.

  6. In Define the file share, do one of the following:

    • To use an existing file share, click Use a previously defined file share, select a file share from the list, and then click Next.

    • To create a new file share, click Define a new file share, type the FQDN for the location of the file share in File Server FQDN, type the name of the share in File Share, and then click Next.

    The file share that you specify or create in this step must exist or be created prior to publishing the topology.
  7. In Specify the Web Services URL, in External Base URL, specify the FQDN for the Directors, and then click Finish.

    The name must be resolvable from Internet DNS servers and point to the public IP address of the reverse proxy, which listens for HTTP/HTTPS requests to that URL and proxies it to the external Web Services virtual directory on that Director.
  8. Publish the topology.