Listing all vSphere DRS Rules that have been defined for a VM

getDrsRules.ps1

$clusterName = "VSAN-Cluster"

$cluster = Get-Cluster -Name $clusterName
$vms = Get-View ($cluster| Get-VM)
$cluster_view = Get-View ($cluster)
foreach ($vm in $vms) {
  # Using new vSphere 6.0 API (http://www.virtuallyghetto.com/2015/02/handy-new-vsphere-6-0-apis-to-be-aware-of.html)
  $cluster_view.FindRulesForVm($vm.MoRef)
}