[ovirt-users] Uncertain what to do with "Master storage domain" residing on obsolete storage domain.

Hello All, I want to phase out a storage domain however it is marked as "master", I have the following questions: 1. What does it mean when a storage domain is "master". 2. What is the correct way to remove a storage domain that is assigned the "master" status. Any insight on the matter would be highly appreciated. Kind regards, Justin