I have a two node Failover Cluster with shared storage currently providing File Server Services under Windows 2008R2 Failover Clustering. I may add a Print Server to the cluster later on.
I am aware that Exchange 2010 uses failover clustering to provide high availability DAG's, but what is not clear is if Exchange can be installed and co-exist on an existing failover cluster already providing other failover clustering services and applications.
We do not have many users, but do require as much high availability as possible with the minimum number of servers (2x DC, 2x Cluster node with shared Direct Attached SAS storage, 1x CAS for occasional external mailbox access).