Hello all,
I apologize if this is already answered somewhere, but I've been searching this forum and Google for the last hour and a half and couldn't find a definitive answer to my question.
I have an existing HA cluster of three VM hosts, all of which are on ESXi version 5.1.0 799733. We just got a new server and I attempted to install ESXi 5.1.0 799733, but there was an error during the installation (no network adapters detected?), I suspected the hardware was simply incompatible. After checking the VMware compatibility matrix, this was confirmed. Instead, I installed ESXi 5.5.0 1623387 on the new server and now I would like to confirm that it's possible to add this new version 5.5.0 host to the existing HA cluster with three version 5.1.0 hosts.
Any information would be greatly appreciated, thanks!