Finally I had chance and time to install and test the “VMware Heartbeat” which I had learnt to install, configure and use during one of my course.
There’s some note about this software which I think they may be good to mention as may be they come useful in latter exams 😉
You need at least two NIC (one for vCenter connection and other as sync/heartbeat between two vCenter).
It’s recommended to config each NIC on separate vSwitch.
Default channel port: 57348
Client port: 52267
I will add more info about VMware vCenter Server Heartbeat latter on.