Microsoft Announces Public Preview of Geo-Replication Feature for Azure Service Bus Premium Tier
Briefly

The Geo-Replication feature implements metadata and data replication in a primary-secondary replication model. It works with a single namespace, with only one primary region serving producers and consumers at a time.
Unlike Geo-Disaster Recovery, Geo-Replication replicates both metadata and data, establishing resilience between Azure regions and providing additional protection for applications.
Read at InfoQ
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