Zones
Ceph Object Gateway supports the notion of zones. A zone defines a logical group consisting of one or more Ceph Object Gateway instances.
Configuring zones differs from typical configuration procedures, because not all of the settings end up in a Ceph configuration file. You can list zones, get a zone configuration, and set a zone configuration.
Important: All
radosgw-admin zone operations MUST be issued on a
host that operates or will operate within the zone.