FSMO Roles in Windows Server

FSMO stands for Flexible Single Master of Operation. Even though Windows servers are multimaster based, there are a few tasks which requires a single dedicated servers, which cannot work based on a distributed approach. These roles of the roles are reffered to as FSMO role or OM role.

The Different Roles are given below,

• Schema Master
• Domain Naming Master
• PDC Emulator
• RID Master
• Infrastructure Master

Note: The Schema Master and Domain Naming Master comes in a forest environment.

 Schema Master

In a Forest, there can only be single writable schema. This is stored in the DC promoted as Schema Master. to modify the schema of the forest, one must have access to the Schema Master. Once the Schema in the Schema Master is updated, the replication starts to other DC's so the information is been shared.


 Domain Naming Master

The Domain Naming Master controls the adding new domains in a forest as well as the removal of exsisting ones in a forest. It keeps a record of all the domain names in a forest.Usually, this role is placed in Global Catalog server. Because the Global catalog server will be having the all the records regarding the domains and objects.