Merge pull request #56072 from xenolinux/support-limitations

OCPBUGS#6750: Add a new cloning limitation

Author: kelbrown20

modules/persistent-storage-csi-cloning-overview.adoc

@@ -19,6 +19,8 @@ No new API objects are required for cloning. The existing `dataSource` field in
 By default, {product-title} supports CSI volume cloning with these limitations:
 
 * The destination persistent volume claim (PVC) must exist in the same namespace as the source PVC.
-* The source and destination storage class must be the same.
+* Cloning is supported with a different Storage Class.
+** Destination volume can be the same for a different storage class as the source.
+** You can use the default storage class and omit `storageClassName` in the `spec`.
 * Support is only available for CSI drivers. In-tree and FlexVolumes are not supported.
 * CSI drivers might not have implemented the volume cloning functionality. For details, see the CSI driver documentation.