$vCenterServerName = "MyVC1.domain.local", "myVC2.domain.local" # Enter your vCenter server name here. In case of multiple vCenter servers, separate using a comma.
 
$ErrorActionPreference = "Stop"
 
# Connect to vCenter(s)
Write-Host "Connecting..."
$VC = Connect-VIServer $vCenterServerName
 
Write-Host "Counting physical cpu's and vRAM in your environment. Please be patient..."
# Gather information
$pCpu = (Get-VMHost | Get-View | Select -ExpandProperty Hardware | Select -ExpandProperty CpuInfo | Measure-Object -Property NumCpuPackages -Sum).Sum
$vRAM = [Math]::Round((Get-VM | Where {$_.PowerState -eq "PoweredOn"} | Measure-Object -Property MemoryMB -Sum).Sum/1024,0)
Write-Host "======"
"pCpu Count: {0}" -f $pCpu
"vRAM (GB):  {0}" -f $vRAM
Write-Host "======"
# Disconnect
Disconnect-VIServer $vCenterServerName -Confirm:$false
 
# Calculate required licenses
$licCol = @()
$licObj = "" | Select Edition, Entitlement, Licenses
$licObj.Edition = "Essentials/Essentials Plus/Standard"
$licObj.Entitlement = "1 pCpu + 32 GB vRAM"
If (($vRAM/32) -gt $pCpu)
{
	$licObj.Licenses = "{0} with {1} pCpu overhead" -f [Math]::Ceiling($vRAM/32), ([Math]::Ceiling($vRAM/32) - $pCpu)
}
Else
{
	$licObj.Licenses = "{0} with {1} GB vRAM overhead" -f $pCpu, ((32 * $pCpu) - $vRAM)
}
$licCol += $licObj
$licObj = "" | Select Edition, Entitlement, Licenses
$licObj.Edition = "Enterprise"
$licObj.Entitlement = "1 pCpu + 64 GB vRAM"
If (($vRAM/64) -gt $pCpu)
{
	$licObj.Licenses = "{0} with {1} pCpu overhead" -f [Math]::Ceiling($vRAM/64), ([Math]::Ceiling($vRAM/64) - $pCpu)
}
Else
{
	$licObj.Licenses = "{0} with {1} GB vRAM overhead" -f $pCpu, ((64 * $pCpu) - $vRAM)
}
$licCol += $licObj
$licObj = "" | Select Edition, Entitlement, Licenses
$licObj.Edition = "Enterprise Plus"
$licObj.Entitlement = "1 pCpu + 96 GB vRAM"
If (($vRAM/96) -gt $pCpu)
{
	$licObj.Licenses = "{0} with {1} pCpu overhead" -f [Math]::Ceiling($vRAM/96), ([Math]::Ceiling($vRAM/96) - $pCpu)
}
Else
{
	$licObj.Licenses = "{0} with {1} GB vRAM overhead" -f $pCpu, ((96 * $pCpu) - $vRAM)
}
$licCol += $licObj
# Displaying output
Write-Host "Resulting license options:"
$licCol
Write-Host "======"
Write-Host "NOTE: vRAM only counts memory allocated to vm's that are POWERED ON." -ForegroundColor Red 
Write-Host "NOTE: Please double check the results of this script, since hosts may have been omitted due to errors." -ForegroundColor Red 
Write-Host "Disclaimer: No rights can be deduced from this calculation." -ForegroundColor Red
Write-Host "======"

$vCenterServer = MyvCenterServer.domain.local #Enter your vCenter server FQDN here
 
#Connect to vCenter Server
$VC = Connect-VIServer $vCenterServer
 
#Gathering data
ForEach ($vm in get-vm)
{
	$vmView = $vm | get-view
 
	Write-Host "======"
	Write-Host "VM: $($vm.Name)"
	Write-Host "Current Limit: $($vmView.config.MemoryAllocation.Limit)"
 
	If ($vmView.config.MemoryAllocation.Limit -ne -1)
	{
		#Preparing modified data
		$spec = New-Object VMware.Vim.VirtualMachineConfigSpec
		$MemoryAllocation = New-Object VMware.Vim.ResourceAllocationInfo
		$MemoryAllocation.Limit = -1
		$spec.MemoryAllocation = $MemoryAllocation
 
		#Applying modification
		Write-Host "Removing Memory Limit"
		$vmView.ReconfigVM($spec)
 
		#Reloading data
		$vm = get-vm $vm.name
		$vmView = $vm | get-view
		Write-Host "Current Limit: $($vmView.config.MemoryAllocation.Limit)"
	}
 
	#Cleanup
	Clear-Variable vmView -ErrorAction SilentlyContinue
}
 
#Disconnect
Disconnect-VIServer $vCenterServer -Confirm:$false

# Report vSphere Alarms
# by Hugo Peeters
# www.peetersonline.nl
 
#Region Variables
$VCServer = "myVCServer"
$Outfile = "D:\scripts\Alarms.txt"
 
Connect-VIServer $VCServer
$SI = Get-View ServiceInstance
$AM = Get-View $SI.Content.AlarmManager
$myCol = @()
ForEach ($Folder in (Get-Folder))
	{
	ForEach ($Alarm in ($AM.GetAlarm(($Folder|Get-View).MoRef)))
		{
		$Alarm = Get-View $Alarm
		$myObj = "" | Select Folder, Name, Description, Enabled, Summary
		$myObj.Folder = $Folder.Name
		$myObj.Name = $Alarm.Info.Name
		$myObj.Description = $Alarm.Info.Description
		$myObj.Enabled = $Alarm.Info.Enabled
		$myObj.Summary = $Alarm.Info.Expression.Expression | Out-String
		$myObj
		$myCol += $myObj
		}
	}
$myCol | Where {$_.Enabled} | Out-File $Outfile
ii $Outfile