We currently are running Vsphere 4.1 and getting ready to migrate to Vsphere 5.0. We are then adding brand new servers that will have vsphere 5 installed on them and then added.
This is what I planned.
Upgrade vcenter 5
Install new vsphere 5 servers
The hosts that are currently 4.1 are being wiped out after removing the virtuals and they will get a fresh install of vsphere5. Do they need to be patched and upgraded prior to successfully installing vcenter5? Also was wondering if they need to be upgraded prior to vmotioning off the current virtuals they are housing to the new vsphere 5 servers that will be added?
I am hoping I don't have to upgrade them just to vmotion off the current virtuals to the vsphere 5 servers but now I am starting to think that they may have to be upgraded prior to the move?
Thank you in advance,