Create or upgrade an additional vCenter Single Sign-On node for an existing high availability vCenter Single Sign-On installation.

To create or upgrade the only node in a basic vCenter Single Sign-On installation, see Separately Install or Upgrade vCenter Single Sign-On in a Basic Deployment.

If you are installing or upgrading Single Sign-On on a multisite installation, see Install an Additional Node for a Multisite vCenter Single Sign-On Installation


In the software installer directory, double-click the autorun.exe file to start the installer.


If you are installing a new instance of Single Sign-On, proceed to step 3. If you are upgrading an existing installation of Single Sign-On, take the following steps:


Enter the password for the Single Sign-On administrator account.


(Optional) If you use a Microsoft SQL Server database for Single Sign-On, select whether to set a Microsoft SQL instance with a dynamic port.

To enable the dynamic port feature for an external Single Sign-On SQL Server database, you must enable the feature SQL Server Browser on startup for the external SQL Server during the SQL Server installation, or enable it after SQL Server is installed. If the SQL Server Browser feature is not enabled, Single Sign-On cannot connect to the external database with the instance name.


Enter the Microsoft SQL Server instance name for the dynamic port.


Proceed to step 5.


In the Single Sign On Deployment Type panel, select Join an existing Single Sign On installation.


Select the Single Sign-On type, and enter the connection information for the existing primary node of the Single Sign-On installation that you are adding this node to.

By default, the Single Sign-On port is 7444. If you assigned a different port when you installed Single Sign-On, use that port.


Click Install.

Continue to the next task, Configure the Load Balancing Software.