VMware PowerCLI add 1 TB Thin HDD to a vm

clear
Add-PSSnapin VMware.VimAutomation.Core
$Admin ="tech-jockey\jockey-admin"
$Password = Get-Content c:\vccred\securestring.txt | convertto-securestring
$Credential = new-object -typename System.Management.Automation.PSCredential -argumentlist $Admin, $Password
Connect-VIServer tech-jockey-vCenter -SaveCredentials -Credential $Credential

clear
#Add 1.7 TB HDD to vm
$vmm=get-folder -name vm-fol1 |get-vm

foreach($vm in $vmm)
{

$ds=get-vm -name $vm| get-datastore


New-HardDisk -vm $vm  -Datastore $ds -StorageFormat Thin -CapacityKB 1.835e+9
}