[deprication] Export storage domain is depricated

[slavonnet]

The export storage domain is deprecated. Storage data domains can be unattached from a data center and imported to another data center in the same environment, or in a different environment. Virtual machines, floating virtual disks, and templates can then be uploaded from the imported storage domain to the attached data center. See Importing Existing Storage Domains for information on importing storage domains

[lgj-master]

If the Ovirt engine fails and the export domain cannot be detached, can you join the export domain to another data center? pg database not backed up.