[Users] Change data domain

Hi, I'm changing the master domain to a new added one. I've placed the old in maintenance and ovirt made the change of master to the new one. The thing is that now that I have both active, I get this error: Sync Error on Master Domain between Host Dell2 and oVirt Engine. Domain: IBM3300 is marked as Master in oVirt Engine database but not on the Storage side. Please consult with Support on how to fix this issue. How can I fix this? Another thing, is there a way of having two iscsi data domains mirrored? To have a sort of high availability in the data domains. Regards,