.New multi-site configurations for the Ceph Object Gateway
The Red Hat Ceph Storage now supports an active-active zone configuration of Ceph Object Gateways. Previously, only active-passive configuration was supported, meaning the users could write only to one (master) zone. With this update, users can write also to non-master zones.
In addition, this update introduces the following changes:
* A region is now called `zone-group`.
* Support for configuring realms has been added. A realm is a single zone group or multiple zone groups with a globally unique namespace.
* A configuration period has been added. The period is a representation of the multi-site configuration at a point in time. The current period contains an epoch that advances as changes are made to the configuration. A new period is generated when the location of the multi-site master zone changes.
* The `ceph-radosgw` daemon handles the synchronization, eliminating the need for a separate synchronization agent.
For details see the https://access.redhat.com/documentation/en/red-hat-ceph-storage/2/single/object-gateway-guide-for-red-hat-enterprise-linux/#multi_site[Multi-site] chapter in the https://access.redhat.com/documentation/en/red-hat-ceph-storage/2/single/object-gateway-guide-for-red-hat-enterprise-linux[Object Gateway Guide for Red Hat Enterprise Linux] and the https://access.redhat.com/documentation/en/red-hat-ceph-storage/2/single/object-gateway-guide-for-ubuntu/#multi_site[Multi-site] chapter in the https://access.redhat.com/documentation/en/red-hat-ceph-storage/2/single/object-gateway-guide-for-ubuntu[Object Gateway Guide for Ubuntu].