After RDM resize script shows old disk size instead of new

Hi All,

After RDM resize, below script still shows the old size but in the guest, I can see the new size capacity.

RDM is presented as Physical currently

Get-VM db1 | Get-HardDisk | where {"RawPhysical","RawVirtual" -contains $_.DiskType} | Select @{N="VM";E={$_.Parent.Name}},Name,CapacityGB,ScsiCanonicalName

Please help

Thanks

Madhusudan