Create Replica Servers

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2, Windows Server 2008, Windows Server Update Services

A description of the benefits of creating a replica server is available in "Centralized Management" in Choose a WSUS Management Style earlier in this guide.

To create a replica group for centralized management of multiple WSUS servers

  1. Install WSUS on a computer at a site where it can be managed by an administrator. Follow the steps in Run WSUS 3.0 Server Setup in this guide.

  2. Install WSUS on a computer at a remote site, in the same way as in Step 1. When you have launched the Configuration Wizard, go to the Choose Upstream Server page, select the Synchronize from another Windows Server Update Services server check box, and then enter the name of the WSUS server from step 1.

  3. If you are planning to use SSL for this connection, select the Use SSL when synchronizing update information check box.

  4. Select the This is a replica of the upstream server check box.

  5. Repeat steps 2, 3, and 4 as necessary to add additional WSUS servers to the replica group.

Enable reporting rollup from replica servers

You can roll up computer and update status from replica servers to their upstream server.

To enable reporting rollup from replica servers

  1. In the WSUS administration console on the upstream server, click Options, and then Reporting Rollup.

  2. Select the Roll up status from replica downstream servers check box, and then click OK.


During the client scan, if the server detects the client changed group membership (or name, or IP address, or operating system version), it marks the client as needing a full rollup. The downstream server will roll up these changes to the upstream server during the next rollup after client scan.