Modifications to the Realm Definition of Affiliated Servers

Administrators can modify the realm definition using the browser configuration interface.

Only the primary server can accept realm modifications and updates directly from administrators.
A satellite server can accept updates only from the primary server.
A backup server can accept updates only from its regular server (that is, the server for which it plays the role of backup).
A disaster recovery server can accept updates only from the primary server.

Disconnected Satellite
Although a primary server can accept an update even while disconnected from a satellite, avoid this practice, as it can cause administrative complexities. Before attempting to deploy an updated realm definition, check the health of all affiliated servers and correct any network issues.
Primary Out of Sync with Backup
If a primary server or a satellite has a backup, it cannot accept updates unless it is connected to its backup server. Nonetheless, out-of-sync situations can arise.
Resyncing a Primary from a Backup Server
When a primary server is out of sync with its backup, you can manually resync the primary.

Related concepts

Server Roles and Relationships