When you say upgrade vCenter to 5.0.1, which component are you talking about? Our vCenter node is a Windows VM. We are runing vSphere Client, which is 4.1.0. Are you simply saying we ought to upgrade the hosts from ESXi 4.1 directly to ESXi 5.0.1 and skip the ESX 4.1 Update 2?
We will go to v5..01 later and when we do, I assume we can have a mixed-version cluster while the upgrade is happening. That is - add the new node at version 5, then migrate VMs to it from one of the other hosts to upgrade that host then repeat for the third host. Seems we have to have a mixed-version cluster for some period of time. Even if we add the third node after the other two hosts have been upgraded, we still have the issue when upgrading the two hosts.
The terminiology steps over itself sometimes. ESXi, VMWare Server, vSphere, vCenter etc. I want to make sure I am understanding your recomendation.
- Paul -