You need to have persistent storage classes defined in your OpenShift cluster. Storage classes can be defined by OpenShift cluster administrators.
The exact amount of storage classified as block or filesystem storage depends on the specific workloads (Machine Learning or Data Warehouse) and how they are used.
See the Red Hat OpenShift documentation for more information about OpenShift storage classes and persistent volumes.
To use Portworx as a storage platform, you must first create a Portworx storage class on your OCP cluster and then specify it in the Storage Class field while installing CDP Private Cloud Data Services on the OCP cluster. For information on how to create the storage class, see Step 4: StorageClass Setup in the Portworx documentation. See Installing in internet environment for information on how to install CDP Private Cloud Data Services on OCP.
After you specify the storage class while installing CDP Private Cloud Data Services, all other data services can use it.