I'm in the process of building my Exchange Server 2013 with high availability requirement for 24/7 company on top of VMware vSphere ESXi 5.1 U1
As i will be deploying the VM 2x mailbox server across different VLAN / Subnet on two diffferent AD sites (same domain but different sites),
Does in this case I need to add 1x vNIC as Backup Network or the backup can be done through the passive node ?
Do I need to provide Heartbeat network that is using the same VLAn on both VM above ?
The underlying OS is Windows Server 2012