[ovirt-users] Thin Provision Not Work

Hi All: I find an issue in Thin Provision with oVirt, when I create a virtual disk I click the option Thin Provision (assign disk space 30G and actually it use 1G only), so I should see in the storage this disk for nearly 1G image file too. However it shows 30G image file. Any hints could fix this for using Thin Provision? BR, Paul.LKW