Red Hat Summit16.3.4.2. Regional-DR for Red Hat OpenShift Data Foundation
OpenShift Virtualization supports the Regional-DR solution for OpenShift Data Foundation, which provides asynchronous data replication at regular intervals between managed OpenShift Virtualization clusters installed on primary and secondary sites.
Regional-DR differences
- Regional-DR supports higher network latency between the primary and secondary sites.
- Regional-DR uses RBD snapshots to replicate data asynchronously. Currently, your applications must be resilient to small variances between VM disks. You can prevent these variances by using single disk VMs.
-
Using the import method when selecting a population source for your VM disk is recommended. However, you can protect VMs that use cloned PVCs if you select a
VolumeReplicationClassthat enables image flattening. For more information, see the OpenShift Data Foundation documentation.
For more information about using the Regional-DR solution for OpenShift Data Foundation with OpenShift Virtualization, see IBM’s OpenShift Data Foundation Regional-DR documentation.
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