OpenShift Container Storage is now OpenShift Data Foundation starting with version 4.9.
Chapter 4. Technology previews
This section describes technology preview features introduced in Red Hat OpenShift Data Foundation 4.9 under Technology Preview support limitations.
Technology Preview features are provided with a limited support scope, as detailed on the Customer Portal: Technology Preview Features Support Scope.
PV encryption - service account per namespace
As of Openshift Data Foundation 4.9, you can use service accounts to authenticate a tenant with Vault as a technology preview. For more information, see Persistent volume encryption.
Alerts to control overprovision
With this release, you can get alerts for the overprovision. This enables you to define a quota on the amount of persistent volume claims (PVCs) consumed from a storage cluster based on the specific application namespace. For more information, see Overprovision level policy control.