[PowerCLI] Get-VMReport

Function Get-VMReport {

    [cmdletbinding()]

    param(
        [parameter(Position=0)]
        [String]
        $VMname,

        [parameter(Position=1)]
        [String]
        $VIServerName = "<DefaultVIServerName>"
         )

    If(!$global:DefaultVIServer){
        Connect-VIServer $VIServerName
    }

    If($global:DefaultVIServer.Name -notlike $VIServerName){
        Disconnect-VIServer -Server $global:DefaultVIServer
        Connect-VIServer $VIServerName
    }

    If($VMname){
        $VMList = Get-VM -Name $VMname
    }
    Else{$VMList = Get-VM}

    $vmarray = New-Object -TypeName System.Collections.ArrayList

    ForEach($VM in $VMList){

        $disks = $VM | Get-HardDisk

        ForEach($disk in $disks){

            $guestdisk = $null

            ForEach($guest in $VM.Guest.Disks){

                If([math]::Abs(($disk.CapacityGB - $guest.CapacityGB)) -lt 2){
                    $guestdisk = $guest
                }

            }

            $temp = [pscustomobject] @{'Host' = $VM.VMHost.Name.Split('.')[0]
                                       'Name' = $VM.Name
                                       'vCPUs' = $VM.NumCpu
                                       'Memory' = $VM.MemoryGB
                                       'OS Disk Name' = $guestdisk.Path
                                       'Disk Lun' = $disk.Filename.Split(' ')[0]
                                       'Disk Size (GB)' = $disk.CapacityGB
                                       'Free Space (GB)' = [math]::Round($guestdisk.FreeSpaceGB,2)
                                       'Disk File' = $disk.Filename.Split(' ')[1]}


            $vmarray.Add($temp) | Out-Null
            Write-Progress -Activity "Processing VMs..." -Status "Objects processed: $($vmarray.Count)"

        }

    }

    $vmarray | Sort-Object Host, Name | Out-GridView -Title "Host/VM Distribution" -OutputMode None

}