Reports ESXi Path-Count from all Devices via PowerCLI GET-ESXCLI -V2

Report-LUNPath-ESXCLI.ps1

# Start Load VMware  Snapin (if not already loaded)
if (!(Get-PSSnapin -Name VMware.VimAutomation.Core -ErrorAction SilentlyContinue)) {
	if (!(Add-PSSnapin -PassThru VMware.VimAutomation.Core)) {
		# Error out if loading fails
		Write-Error "ERROR: Cannot load the VMware Snapin. Is the PowerCLI installed?"
		Exit
	}
}
# End Load VMware  Snapin (if not already loaded)

# Start Global Definitions
$VIServer = "your-vCenter"
# End Global Definitions

# Start vCenter Connection
Write-Host "Starting to Process vCenter Connection to " $VIServer " ..."-ForegroundColor Magenta
$OpenConnection = $global:DefaultVIServers | where { $_.Name -eq $VIServer }
if($OpenConnection.IsConnected) {
	Write-Host "vCenter is Already Connected..." -ForegroundColor Yellow
	$VIConnection = $OpenConnection
} else {
	Write-Host "Connecting vCenter..."
	$VIConnection = Connect-VIServer -Server $VIServer
}

if (-not $VIConnection.IsConnected) {
	Write-Error "Error: vCenter Connection Failed"
    Exit
}
# End vCenter Connection

# Start Get all Connected Hosts
$myHosts = Get-VMHost | where {$_.ConnectionState  -eq "Connected" -and $_.PowerState -eq "PoweredOn"}
# End Get all Connected Hosts

$Report = @()
foreach ($myHost in $myHosts) {
	$esxcli2 = Get-ESXCLI -VMHost $myHost -V2
	$devices = $esxcli2.storage.core.path.list.invoke() | select Device -Unique

	foreach ($device in $devices) {
		$arguments = $esxcli2.storage.core.path.list.CreateArgs()
		$arguments.device = $device.Device
		$LUNs = $esxcli2.storage.core.path.list.Invoke($arguments)
	
		$LUNReport = [PSCustomObject] @{
			HostName = $myHost.Name
			Device = $device.Device
			LUNPaths = $LUNs.Length
			LUNIDs = $LUNs.LUN | Select-Object -Unique
		}
		$Report += $LUNReport
		}
	}

$Report | where {$_.LUNPaths -gt $MaxLUNPaths -or ($_.LUNIDs | measure).count -gt 1 }  | ft -AutoSize