I'm in the process of upgrading our vSphere environment. I need to vmotion critical servers from an ESX 4.1 cluster to an ESXi 5.5 cluster. Both clusters are now being managed by a 5.5 vcenter server.
See the attachment. The hosts in the PROD4 cluster are all ESX 4.1 and the hosts in the Production cluster are ESXi 5.5
Can I install 5.5 on another host and add it to the PROD4 cluster so I can vmotion critical VMs to it, then vmotion them to the 5.5 cluster?
Bottom line is how do I get VMs on the 4.1 hosts to the 5.5 hosts with no downtime?