[ovirt-users] oVirt 3.5 -- Domain questions

FWIW I've done lots of goog searches and came up with a lot of old info, so I thought I'd ask here for the latest before going down the wrong path. Two issues here; running 3.5 First issue; On one domain, I have a master and secondary data domain. Eventually I want to move everything from the master to secondary, and promote the secondary data domain to master, and retire the current master. Whats the best process for this? Second issue; I have two clusters, for now we'll call them A and B Cluster A has a master data domain that I want to effectively shut down (turn all VMs off, shut down the domain) --- can I then reattach that domain as a secondary to Cluster B and reactivate the VMs?