# Get virtual disk into variable
$VD = Get-VirtualDisk -FriendlyName "VMs"
# Set tier for vhhdx
Set-FileStorageTier -FilePath "V:\VMs\RJGDPM1\RJGDPM1 DPM Pool 1.vhdx" -DesiredStorageTier ($VD | Get-StorageTier -MediaType SSD)
# Initiate tier placement
Optimize-Volume -DriveLetter V -TierOptimize
# Check status
Get-FileStorageTier -VolumeDriveLetter V | FL