I currently have 2 clusters, both containing 5.5 hosts. Cluster A hosts the brunt of my servers, cluster B hosts a couple servers, but is primarily used as a off-site backup location for all my Veeam replicas of the VMs in cluster A.
The hosts in cluster B are getting a little long in the tooth, and I found that there raid controllers are not compatible with ESXi 6.0.
Will I run in to any issues upgrading cluster A to ESXi 6.0 while leaving cluster B on ESXi 5.5? I plan on replacing those older servers soon, but I was hoping to get this upgrade process under way.