[ovirt-users] Moving data to new storage appliance

Hi everyone, I'm sorry to bother y'all with another noob question. We are in the process of retiring the old storage appliance that backed our oVirt cluster in favor of a new appliance. I have migrated all of the active VM storage to the new appliance, but can't see how to migrate the "base versions". My understanding is that if I just drop the storage with the base versions then the derived VM's will cease to be functional. Please advise.