Count VM’s on ESX host

This one-liner will count all VM’s on a ESX host

 Get-VMHost -Server xxx.xxx.xxx.xxx | Select Name,@{N="NumVM";E={($_ |Get-VM -Server xxx.xxx.xxx.xxx | where {$_.PowerState -eq "PoweredOn"}).Count}} 

Coding for usage with the VESI:

 $noConnection = $true if ($global:vmwareManagedHosts) { foreach ($key in @($global:vmwareManagedHosts.Keys)) { if (($managedHost = $global:vmwareManagedHosts[$key]) -and ($managedHost.Connected)) { $noConnection = $false Get-VMHost -Server $managedHost.connection | Select Name,@{N="NumVM";E={($_ |Get-VM -Server $managedHost.connection | where {$_.PowerState -eq "PoweredOn"}).Count}} | Sort Name } } } if ($noConnection) { [System.Windows.Forms.MessageBox]::Show('You must connect to one or more hosts before you can manage the hosts themselves. Please click on the ''Managed Hosts'' node, connect to one or more of the servers you have configured there, and then try again.','Connection not established',[System.Windows.Forms.MessageBoxButtons]::OK,[System.Windows.Forms.MessageBoxIcon]::Information) | Out-Null }