Metro-DR

Metro-DR is composed of Red Hat Advanced Cluster Management for Kubernetes (RHACM), IBM Storage Ceph and Fusion Data Foundation components to provide application and data mobility across OpenShift Container Platform clusters.

This release of Metro-DR solution provides volume persistent data and metadata replication across sites that are geographically dispersed. In the public cloud these would be similar to protecting from an Availability Zone failure. Metro-DR ensures business continuity during the unavailability of a data center with no data loss.
Important: You can now easily set up Metropolitan disaster recovery solutions for workloads based on OpenShift virtualization technology using Fusion Data Foundation. For more information, see the knowledgebase article.

Prerequisites

Ensure that the primary managed cluster (Site-1) is co-situated with the active RHACM hub cluster while the passive hub cluster is situated along with the secondary managed cluster (Site-2). Alternatively, the active RHACM hub cluster can be placed in a neutral site (Site-3) that is not impacted by the failures of either of the primary managed cluster at Site-1 or the secondary cluster at Site-2. In this situation, if a passive hub cluster is used it can be placed with the secondary cluster at Site-2.
Note: Hub recovery is a Technology Preview feature and is subject to Technology Preview support limitations.
For detailed solution requirements, see the following: