Number of NICs required for Server 2008 R2 Cluster
I've discovered that I need to setup a 2008 R2 Cluster to provide access to iSCSI SAN storage and Volunes (LUNS) for hosting .vhd files for VM's created on HYPER-V resulting in high availability and live migration etc. My current configuration is 2 x DELL R410 servers with 2 (two) NICs. These are configured with one for Network Data traffic and the other for the iSCSI LAN.
Do I need a third for the Heartbeat or can the Network NIC be used for this purpose.