This subsection describes how to start the system when you use the mutual node switching system.

To start the mutual node switching system, you must first start the Management Server and Administration Agent. If the Management Server and Administration Agent are not running, start the Management Server and Administration Agent first.

The sequence for starting the mutual node switching system is as follows:

1. From the Start menu, choose Control Panel - Performance and Maintenance - Management Tools, and then select Cluster Administrator.
   The Cluster Administrator starts.
   
2. In the console tree (left pane), select the node of Application Server 1, and then from the File menu choose Start Cluster Service.
   The cluster service of the node for Application Server 1 starts.
   
3. In the console tree (left pane), select the node of Application Server 2, and then from the File menu choose Start Cluster Service.
   The cluster service of the node for application server 2 starts.
   
4. In the console tree (left pane), select resource group A and then from the File menu, choose Set to Online.
   The executing node (Application Server A) goes online.
   
5. In the console tree (left pane), select resource group B, and then from the File menu choose Set to Online.
   The executing node (Application Server B) goes online.