I have two hosts running ESX or ESXi 3.5. I want the hosts upgraded to 4.1. My understanding is it's best to do a CLEAN install and not an upgrade.
So far I've already setup my vSphere server, populated licenses, etc. In fact I've been running vSphere client managing my hosts and vms for a while now. I just haven't upgraded my hosts or vms to 4.1 yet.
My vSphere server is a separate physical machine.
I keep reading that I should migrate my vms to another host, then clean install 4.1 on host, then migrate the vms back to the host.
Because I'm doing this off hours, I can shut down all the virtual machines. Not an issue.
Will the following work:
1. HOST A. - Power down all VMs. (FYI, all VMs run off a NAS device not local)
2. HOST A. - Clean install 4.1
3. HOST A. - Launch vSphere, hosts & vms should import automatically?
I guess I want to ensure nothing happens to my VMs on the NAS. Once I've upgrade my HOST A to 4.1 (doing a clean install) I should be able to launch vSphere and everything should reimport? Or do I have to manually import my vms and/or host A?