Just run the setup and install a new clustered instance.
It's not really different from installing the first instance.
My question pertains to SQL Server 2012, but I haven't received a single reply to my post in the 2012 forum, so I figured I'd ask you in this thread since you appear to have experience with adding more than one instance to a SQL cluster.
I have a Windows Failover Cluster setup across 3 nodes with only 1 service/application running on it - which is SQL Server 2012. Everything works great, however now I need to add another SQL instance for an entirely different project. I have added an additional iSCSI volume to the failover cluster and it shows up just fine. At this point, how to I add an additional instance of SQL 2012 to this cluster using the new storage disk?
I assume I'd just pop the SQL Server 2012 disc in one of the nodes and install a new SQL Server Cluster instance and then go around to the rest of the nodes and just use the 'add node' option, but I just wanted to verify first. I attempted to do this and got cold feet when it came to the part about installing the setup and support files. The reason I got cold feet was because we have a group of people using the existing SQL 2012 instance and I didn't want to disrupt anything.
Any help would be much appreciated. Thanks!