These are already 4 of the 5 properties
$row.HostsConnected= [string]::Join('|',
(Get-View ($_.ExtensionData.Host | Select -ExpandProperty Key) | %{$_.Name.Split('.')[0]}))
$row.VMsHosted= [string::Join('|',(Get-View $_.ExtensionData.VM | %{$_.Name}))
$row.SIOC = $_.StorageIOCOntrolEnabled
$row.PartofStorageCluster = $_.ParentFolderId -match "StoragePod" I'm not completely sure what you mean with the LUNUUID (fast method) ?
Is the the CanonicalName for the LUN(s) that form the extents of the datastore ?
