I am making a 2 node SQL Server 2012 Fail Over Cluster, do I need to install MSDTC also?
If yes then can both be installed on single shared disk?
MSDTC is not required for a SQL Server 2012 fail over cluster. However, if you plan to use Linked Servers, then you will need to create a clustered MSDTC resource. The good news is that can be setup after the cluster is already built and after SQL Server has been installed.