[ovirt-users] Storage migration: Preallocation forced on destination

[Nicolás]

Hi,

We're migrating an existing storage (glusterfs) to a new one (iSCSI). 
All disks on glusterfs are thin provisioned, but when migrating to iSCSI 
the following warning is shown:

     The following disks will become preallocated, and may consume 
considerably more space on the target: local-disk

Why is that? Is there a way to migrate disks so they are thin 
provisioned on iSCSI as well?

Thanks.