VMware vSphere 4.1 introduces a new affinity rule, called “Virtual Machines to Hosts” (VM-Host), which I described in the article “VM to Host affinity rule”. A short recap: VM-Host affinity rules are available in two flavors: Must run rules (Mandatory) Should run rules (Preferential) By providing these two options a new problem arises for the … Continue reading Should or Must VM-Host affinity rules?