Using active/active replication ring topology
The active/active replication ring topology supports increasingly large storage clouds. The HCP systems included in the ring are typically in geographically disperse locations, with each system providing the same functionality as all the others. Changes made on any one system are propagated to all the other systems, effectively enabling shared read-write access to the same HCP tenants and namespaces and default-namespace directories regardless of where the client applications are located.
New HCP systems can be added to an active/active replication ring topology at any time. To add a new system (for example, system X) to the topology:
Procedure
Create a new active/active link between any system already in the topology (for example, system B) and system X.
Add the tenants, namespaces, and directories already being replicated around the ring to the new link.
Create a new link between system X and one of the other systems with which system B participates in a link (for example, system C).
Add the tenants, namespaces, and directories already being replicated around the ring to that new link.
Delete the link between system B and system C.