Transferring and seizing operation master roles

Every forest and domain has FSMO roles that are important for a properly functioning AD DS environment. In some scenarios, such as a single domain infrastructure, the first domain controller in the forest root domain will hold all FSMO roles. Statistically, most organizations have this FSMO structure. Sometimes, however, you need to move one or more FSMO roles to another domain controller. This process can be planned, if we are demoting old domain controllers or workload balancing, or unplanned, due to a hardware failure of the domain controller that holds FSMO roles.