2.5. Support setting of RBD storage class as the default
The Ceph RADOS block device (RBD) storage class can be set as the default storage class during the deployment of OpenShift Data Foundation on bare metal and IBM Power platforms. This helps to avoid manual annotation of the storage cluster when it is required to set Ceph RBD as the default storage class. In addition, it helps to avoid the confusion of selecting the correct storage class.
For more information, see Creating OpenShift Data Foundation cluster on bare metal and Creating OpenShift Data Foundation cluster on IBM Power.