I've run into a situation where a vendor built an ESXi 5.1 environment with 3 hosts and built vCenter as a VM on Host 2. This is an issue with updating ESXi on that Host if not familiar with doing so via SSH and CLI.
I would like separate this vCenter VM from being a VM and install as a physical machine. I'm not asking about how to convert, I can use VMWare Standalone Converter, and I am probably going to install a new instance from scratch.
What are some considerations I need to keep in mind while doing this? All 3 Hosts are registered with the current vCenter server so do I need to do anything in particular to unregister or de-link?
Any other things to keep in mind?