[This is pre-release documentation and subject to change in future releases. This topic's current status is: Milestone-Ready]

Topic Last Modified: 2010-07-19

Communications 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 (HLB) and Domain Name System (DNS) load balancing are supported. The documentation explains how to configure DNS load balancing for Director Pools.

Define the Director (Single Instance)

  1. From the Communications Server 2010 (Beta Refresh) program group, open Communications Server Topology Builder.

  2. On the welcome page, click Download Topology from Existing Deployment, and then save a local cache copy to a file.

  3. Expand the Server Role tree view, right-click Director pools, and select New Director Pool.

  4. On the Define the Director pool FQDN page, specify the computer fully qualified domain name (FQDN), select the Single computer pool option, and then click Next.

  5. On the Define the file share page, select an existing file share (used by another pool), or create a new one, and then click Next.

    Note:
    The file share assigned to a Director is not actually used, so you can assign the file share of any pool in the organization.
  6. On the Specify the Web Services URL page, specify the FQDN for the Director’s External Base URL, 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.

Define the Director (Multiple Director Pool)

  1. From the Communications Server 2010 (Beta Refresh) program group, open Communications Server Topology Builder.

  2. On the welcome page, click Download Topology from Existing Deployment, and then save a local cache copy to a file.

  3. Expand the Server Role tree view, right-click Director pools, and then click New Director Pool.

  4. On the Define the Director pool FQDN page, specify the Director pool fully qualified domain name (FQDN), select the Multiple computer pool option, and then click Next.

  5. On the Define the computers in the pool page, specify the computers FQDNs of the pool member, and then click Add. Repeat for each computer to be added. When finished, click Next.

  6. On the Define the file share page, select an existing file share (used by another pool), or create a new one, and then click Next.

    Note:
    The file share assigned to a Director is not actually used, so you can assign the file share of any pool in the organization.
  7. On the Specify the Web Services URL page, specify the FQDN for the Director’s External Base URL, 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.