It depends on how your cluster is set up. Active/Passive means that ONLY ONE node can 'see' the virtual server(s) (shared disks) at one time. The cluster and virtual server(s) must be failed over for the other node to use them.

If BOTH nodes can see and use the virtual server(s) at the SAME time, then it's an Active/Active cluster.

Here's how to test which you have. Log on to one node, open My Computer, can you see the drives that the virtual server is on? Don't do anything else. Now, log onto the the other node, open My Computer, can you see the drives now?

Again, if you can only see the virtual server drives from one node - it's Active/Passive. From both - it's Active/Active.

-SQLBill