Disaster recovery configuration for Fusion Data Foundation

Disaster recovery offerings of IBM Fusion with Fusion Data Foundation storage.

Disaster recovery provides the ability to fail over an application from one Red Hat® OpenShift® Container Platform cluster to another. It also allows relocating the same application back to the original primary cluster.

IBM Fusion with Fusion Data Foundation storage supports the following disaster recovery capabilities:
  • Metro-DR

    Metropolitan disaster recovery (Metro-DR) ensures business continuity during the unavailability of a data center with no data loss. In the public cloud, it is similar to protecting from an Availability Zone failure. For more information, see Metro-DR configuration for Fusion Data Foundation.

  • Regional-DR

    Regional disaster recovery (Regional-DR) ensures business continuity during the unavailability of a geographical region, accepting some loss of data in a predictable amount. In the public cloud, it is similar to protecting from a region failure. For more information, see Regional-DR configuration for Fusion Data Foundation.

  • Disaster recovery with stretch cluster

    Stretch cluster solution ensures business continuity with no data loss disaster recovery protection by using Fusion Data Foundation-based synchronous replication. It operates within a single Red Hat OpenShift Container Platform cluster stretched across two low-latency data centers and one arbiter node. For more information, see Disaster recovery with stretch cluster for Fusion Data Foundation.

Zone failure in Metro-DR and region failure in Regional-DR in Regional-DR is expressed by using the terms, Recovery Point Objective (RPO) and Recovery Time Objective (RTO).
  • RPO is a measure of how frequently you take backups or snapshots of persistent data. In practice, the RPO indicates the amount of data that will be lost or need to be reentered after an outage.
  • RTO is the amount of downtime a business can tolerate. The RTO answers the question, “How long can it take for our system to recover after we are notified of a business disruption?”

Deploying your disaster recovery solution

To protect your applications for disaster recovery (DR), deploy your DR solution as follows in the order mentioned here.
  1. Deploy and configure IBM Fusion Data Foundation Metro-DR or Regional-DR solution. For details, see Metro-DR configuration for Fusion Data Foundation or Regional-DR configuration for Fusion Data Foundation.
  2. Deploy IBM Fusion by following the instructions in Deploying IBM Fusion.

The IBM Metro- & Regional- Disaster Recovery instructions helps you to configure your infrastructure to failover an application from one OpenShift Container Platform cluster to another and then failback the same application to the original primary cluster. After securing your application, deploy Fusion as per the instructions given in step 2.