Disks on the export domain are never used by a running VM so there is
no reason to
preallocate them. The system should always use sparse disks when
copying to export
domain.
When importing disks from export domain, the system should reconstruct
the original disk
configuration (e.g. raw-preallocated).
Hey Nir,
I think you are wrong. In order to minimize the downtime , many users would use storage
migration while the VM is running, then they power off, detach and attach on the new
location , power on and live migrate while the VM works.
I think preallocation should be based on VM status (running or offline).
Best Regards,
Strahil Nikolov