Chapter 2. Requirements for enabling Metro-DR

Disaster Recovery features supported by Red Hat OpenShift Data Foundation require all of the following prerequisites in order to successfully implement a Disaster Recovery solution:

  • Subscription requirements

    • A valid Red Hat OpenShift Data Foundation Advanced entitlement
    • A valid Red Hat Advanced Cluster Management for Kubernetes subscription

    To know how subscriptions for OpenShift Data Foundation work, see knowledgebase article on OpenShift Data Foundation subscriptions.

  • You must have three OpenShift clusters that have network reachability between them:

    • Hub cluster where Advanced Cluster Management for Kubernetes (RHACM operator) and OpenShift DR Hub controllers are installed.
    • Primary managed cluster where OpenShift Data Foundation, OpenShift DR Cluster controller, and applications are installed.
    • Secondary managed cluster where OpenShift Data Foundation, OpenShift DR Cluster controller, and applications are installed.

  • Ensure that RHACM operator and MultiClusterHub is installed on the Hub cluster. See RHACM installation guide for instructions.

    • Once deployment is completed, login to the RHACM console using your OpenShift credentials.

    • Find the Route that has been created for the Advanced Cluster Manager console: 

      $ oc get route multicloud-console -n open-cluster-management -o jsonpath --template="https://{.spec.host}/multicloud/clusters{'\n'}"

      Example Output: 

      https://multicloud-console.apps.perf3.example.com/multicloud/clusters

      After logging in using your OpenShift credentials, you should see your local cluster imported.

  • Ensure that you either import or create the Primary managed cluster and the Secondary managed cluster using the RHACM console. Choose the appropriate options for your environment. After the managed clusters are successfully created or imported, you can see the list of clusters that were imported or created on the console.