I need to add a server to our current VMWare 5.5 HA Cluster. Our current ESX servers are all running CPUs with Westmere architectures and the EVC mode in VMWare is set to Westmere Generation.
Our datacenter is recommending new servers with Xeon e5-26xxv3 cpus with the Haswell Architecture. I could purchase something different but then they refuse to help support them.
I read the Faq from VMWare and it claims I should not see any or at least very little loss in performance by adding it to the existing cluster.
Will there be a performance hit? Or would I be better off to try and convince them to purchase 2 new servers and start a second cluster?