diff --git a/Modules/Recommend-Sizing.psm1 b/Modules/Recommend-Sizing.psm1
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+function Recommend-Sizing {
+<#	
+    .NOTES
+    ===========================================================================
+    Created by: Markus Kraus
+    Twitter: @VMarkus_K
+    Private Blog: mycloudrevolution.com
+    ===========================================================================
+    Changelog:  
+    2016.11 ver 1.0 Base Release 
+    ===========================================================================
+    External Code Sources:  
+    http://www.lucd.info/2011/04/22/get-the-maximum-iops/
+    https://communities.vmware.com/thread/485386
+    ===========================================================================
+    Tested Against Environment:
+    vSphere Version: 5.5 U2
+    PowerCLI Version: PowerCLI 6.3 R1, PowerCLI 6.5 R1
+    PowerShell Version: 4.0, 5.0
+    OS Version: Windows 8.1, Server 2012 R2
+    ===========================================================================
+    Keywords vSphere, ESXi, VM, Storage, Sizing
+    ===========================================================================
+
+    .DESCRIPTION
+    This Function collects Basic vSphere Informations for a Hardware Sizing Recomamndation. Focus is in Compute Ressources.        
+
+    .Example
+    Recommend-Sizing -ClusterNames Cluster01, Cluster02 -StatsRange 480 -Verbose    
+
+    .Example
+    Recommend-Sizing -ClusterNames Cluster01, Cluster02 
+
+    .Example
+    Recommend-Sizing -ClusterNames Cluster01 
+
+    .PARAMETER ClusterNames
+    List of your vSphere Cluser Names to process.
+
+    .PARAMETER StatsRange
+    Time Range in Minutes for the Stats Collection.
+    Default is 24h.
+
+#Requires PS -Version 4.0
+#Requires -Modules VMware.VimAutomation.Core, @{ModuleName="VMware.VimAutomation.Core";ModuleVersion="6.3.0.0"}
+#>
+
+[CmdletBinding()]
+param( 
+    [Parameter(Mandatory=$True, ValueFromPipeline=$False, Position=0)]
+        [Array] $ClusterNames,
+     [Parameter(Mandatory=$False, ValueFromPipeline=$False, Position=1)]
+        [int] $StatsRange = 1440      
+        
+)
+Begin {
+    [int]$TimeRange = "-" + $StatsRange
+    $Validate = $True
+    #region: Check Clusters
+    Write-Verbose "$(Get-Date -Format G) Starting Cluster Validation..." 
+    foreach ($ClusterName in $ClusterNames) {
+        $TestCluster = Get-Cluster -Name $ClusterName -ErrorAction SilentlyContinue -Verbose:$False
+        if(!($TestCluster)){
+            Write-Warning "No Custer found wth Name $ClusterName!"
+            $Validate = $False
+        }
+        elseif ($TestCluster.count -gt 1) {
+            Write-Warning "Multiple Custers found wth Name $ClusterName!`nUse a List of explicit Cluster Names: Recommend-Sizing -ClusterNames Cluster01, Cluster02 "
+            $Validate = $False
+        }
+    }
+    Write-Verbose "$(Get-Date -Format G) Cluster Validation completed" 
+    #endregion
+}
+
+Process {
+    $MyView = @()
+    if ($Validate -eq $True) {
+        foreach ($ClusterName in $ClusterNames) {
+            #region: Get Cluster Objects
+            Write-Verbose "$(Get-Date -Format G) Collect $ClusterName Cluster Objects..." 
+            $Cluster =  Get-Cluster -Name $ClusterName -Verbose:$False
+            $ClusterVMs = $Cluster | Get-VM -Verbose:$False
+            $ClusterVMsPoweredOn = $ClusterVMs | where {$_.PowerState -eq "PoweredOn"}
+            $ClusterDatastores = $Cluster | Get-Datastore -Verbose:$False
+            $ClusterHosts = $Cluster | Get-VMHost -Verbose:$False
+            $HostsAverageMemoryUsageGB = [math]::round( ($ClusterHosts | Measure-Object -Average -Property MemoryUsageGB).Average,1 )
+            $HostsAverageMemoryUsage = $([math]::round( (($ClusterHosts | Measure-Object -Average -Property MemoryUsageGB).Average / ($ClusterHosts | Measure-Object -Average -Property MemoryTotalGB).Average) * 100,1 ))
+            $HostsAverageCpuUsageMhz = [math]::round( ($ClusterHosts | Measure-Object -Average -Property CpuUsageMhz).Average,1 )
+            $HostsAverageCpuUsage = $([math]::round( (($ClusterHosts | Measure-Object -Average -Property CpuUsageMhz).Average / ($ClusterHosts | Measure-Object -Average -Property CpuTotalMhz).Average) * 100,1 ))
+            Write-Verbose "$(Get-Date -Format G) Collect $($Cluster.name) Cluster Objects completed" 
+            #endregion
+
+            #region: CPU Calculation
+            Write-Verbose "$(Get-Date -Format G) Collect $($Cluster.name) CPU Details..." 
+            $VMvCPUs = ($ClusterVMs | Measure-Object -Sum -Property NumCpu).sum
+            $LogicalThreads = $Cluster.ExtensionData.Summary.NumCpuThreads
+            $CpuCores = $Cluster.ExtensionData.Summary.NumCpuCores
+            $vCPUpCPUratio = [math]::round( $VMvCPUs / $LogicalThreads,1 )
+            Write-Verbose "$(Get-Date -Format G) Collect $($Cluster.name) CPU Details completed." 
+            #endregion
+
+            #region: Memory Calculation
+            Write-Verbose "$(Get-Date -Format G) Collect $($Cluster.name) Memory Details..." 
+            $AllocatedVMMemoryGB = [math]::round( ($ClusterVMs | Measure-Object -Sum -Property MemoryGB).sum )
+            $PhysicalMemory = [math]::round( $Cluster.ExtensionData.Summary.TotalMemory / 1073741824,1 )
+            $MemoryUsage = [math]::round( ($AllocatedVMMemoryGB / $PhysicalMemory) * 100 ,1 )
+            Write-Verbose "$(Get-Date -Format G) Collect $($Cluster.name) Memory Details completed" 
+            #endregion
+
+            #region: Creating Disk Metrics
+            Write-Verbose "$(Get-Date -Format G) Create $($Cluster.name) IOPS Metrics..."
+            $DiskMetrics = "virtualDisk.numberReadAveraged.average","virtualDisk.numberWriteAveraged.average"
+            $start = (Get-Date).AddMinutes($TimeRange)
+            $DiskStats = Get-Stat -Stat $DiskMetrics -Entity $ClusterVMsPoweredOn -Start $start -Verbose:$False
+            Write-Verbose "$(Get-Date -Format G) Create $($Cluster.name) IOPS Metrics completed"
+            #endregion
+            
+            #region: Creating IOPS Reports
+            Write-Verbose "$(Get-Date -Format G) Process $($Cluster.name) IOPS Report..."
+            $reportDiskPerf = @() 
+            $reportDiskPerf = $DiskStats | Group-Object -Property {$_.Entity.Name},Instance | %{
+                New-Object PSObject -Property @{
+                    IOPSMax = ($_.Group | `
+                        Group-Object -Property Timestamp | `
+                        %{$_.Group[0].Value + $_.Group[1].Value} | `
+                        Measure-Object -Maximum).Maximum
+                }
+            }
+            Write-Verbose "$(Get-Date -Format G) Process $($Cluster.name) IOPS Report completed"
+            #endregion
+
+            #region: Create VM Disk Space Report
+            Write-Verbose "$(Get-Date -Format G) Process $($Cluster.name) VM Disk Space Report..."
+            $reportDiskSpace = @()
+            foreach ($ClusterVM in $ClusterVMs){
+                $VMDKs = $ClusterVM | get-HardDisk -Verbose:$False
+                foreach ($VMDK in $VMDKs) {
+                    if ($VMDK -ne $null){
+                        [int]$CapacityGB = $VMDK.CapacityKB/1024/1024
+                        $Report = [PSCustomObject] @{
+                                CapacityGB = $CapacityGB
+                            }
+                            $reportDiskSpace += $Report
+                        }   
+                    }
+                }
+            Write-Verbose "$(Get-Date -Format G) Process $($Cluster.name) VM Disk Space Report completed"
+            #endregion
+
+            #region: Create Datastore Space Report
+            Write-Verbose "$(Get-Date -Format G) Process $($Cluster.name) Datastore Space Report..."
+            $DatastoreReport = @($ClusterDatastores | Select-Object @{N="CapacityGB";E={[math]::Round($_.CapacityGB,2)}}, @{N="FreeSpaceGB";E={[math]::Round($_.FreeSpaceGB,2)}}, @{N="UsedSpaceGB";E={[math]::Round($_.CapacityGB - $_.FreeSpaceGB,2)}})
+            Write-Verbose "$(Get-Date -Format G) Process $($Cluster.name) Datastore Space Report completed"
+            #endregion
+
+            #region: Create Global Report
+            Write-Verbose "$(Get-Date -Format G) Process Global Report..."
+            $SizingReport = [PSCustomObject] @{
+				Cluster = $Cluster.name
+                HAEnabled = $Cluster.HAEnabled
+                DrsEnabled = $Cluster.DrsEnabled
+                Hosts = $Cluster.ExtensionData.Summary.NumHosts
+                HostsAverageMemoryUsageGB = $HostsAverageMemoryUsageGB
+                HostsAverageMemoryUsage = "$HostsAverageMemoryUsage %" 
+                HostsAverageCpuUsageMhz = $HostsAverageCpuUsageMhz
+                HostsAverageCpuUsage = "$HostsAverageCpuUsage %" 
+                PhysicalCPUCores = $CpuCores
+                LogicalCPUThreads = $LogicalThreads
+                VMs =  $ClusterVMs.count
+                ActiveVMs =  $ClusterVMsPoweredOn.count
+                VMvCPUs = $VMvCPUs
+				vCPUpCPUratio = "$vCPUpCPUratio : 1"
+                PhysicalMemoryGB = $PhysicalMemory
+                AllocatedVMMemoryGB = $AllocatedVMMemoryGB        
+				ClusterMemoryUsage = "$MemoryUsage %"
+                SumMaxVMIOPS = [math]::round( ($reportDiskPerf | Measure-Object -Sum -Property IOPSMax).sum, 1 )
+                AverageMaxVMIOPs = [math]::round( ($reportDiskPerf | Measure-Object -Average -Property IOPSMax).Average,1 )
+                SumVMDiskSpaceGB = [math]::round( ($reportDiskSpace | Measure-Object -Sum -Property CapacityGB).sum, 1 )
+                SumDatastoreSpaceGB = [math]::round( ($DatastoreReport | Measure-Object -Sum -Property CapacityGB).sum, 1 )
+                SumDatastoreUsedSpaceGB = [math]::round( ($DatastoreReport | Measure-Object -Sum -Property UsedSpaceGB).sum, 1 )
+			}
+		    $MyView += $SizingReport
+            Write-Verbose "$(Get-Date -Format G) Process Global Report completed"
+            #endregion
+		}
+
+        }
+        Else {
+            Write-Error "Validation Failed! Processing Skipped"
+        }
+        
+    }
+
+    End {
+        $MyView
+    }
+
+}
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