Hi Mark
To answer your questions:
1) The Cluster Disk Group is created on one node. Before you add it to a Cluster Service Group, test deport from 1st node and import on 2nd node.
2) Cluster config is done on one node - cluster configuration is automatically copied to all active nodes.
Some additional advise:
First prize would be if you could book yourself on a training course for both Storage Foundation and Veritas Cluster for Windows.
Important basics are often overlooked with a DIY solution. I have seen situations where the product was blamed for something as basic as Compatibility Guides that were not consulted.
Second prize would be if you could get assistance from a trained consultant for installation and configuration of at least on Cluster Service Group.
Lastly, if these two options are not possible, download and read all relevant manuals. My recommendation is as follows:
Veritas Storage Foundation for Windows and High Availability Solutions Getting Started Guide 5.1
Veritas Storage Foundation for Windows and High Availability Solutions Installation and Upgrade Guid...
Veritas Storage Foundation for Windows Administrator's Guide 5.1
Veritas™ Cluster Server Administrator’s Guide
All manuals are also available on your installation media.
More manuals available from this link:
http://www.symantec.com/business/support/documentation.jsp?language=english&view=manuals&pid=15227