After you have installed a Microsoft® SQL Server™ 2000 failover cluster, you can change or repair your existing setup. For example, you can add additional nodes to a virtual server in a failover cluster, run a clustered instance as a stand-alone instance, remove a node from a clustered instance, or recover from failover cluster failure.
Adding a Node to an Existing Virtual Server
During SQL Server Setup, you are given the option of maintaining an existing virtual server. If you choose this option, you can add other nodes to your failover cluster configuration at a later time. You can add up to three additional nodes to an existing virtual server configured to run on one node.
To add a node to an existing virtual server