Topic Last Modified: 2011-03-23

Lync Server 2010 Directors can be single-instance servers or 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. The documentation explains how to configure DNS load balancing for Director pools.

To successfully publish, enable, or disable a topology when adding or removing a server role, you should be logged in as a user who is a member of the RTCUniversalServerAdmins and Domain Admins groups. It is also possible to delegate the proper 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 (multiple Director pool)

  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, enter 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 Multiple computer pool, and then click Next.

  6. In Define the computers in this pool, do the following:

    • Specify the computer FQDN of the first pool member, and then click Add.

    • Repeat the previous step for each computer that you want to add. When you are finished, click Next.

  7. 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.

    The file share assigned to a Director is not actually used, so you can assign the file share of any pool in the organization.
  8. 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 sent to that URL and proxies it to the external Web Services virtual directory on that Director pool.
  9. Publish the topology.