In-tree storage drivers that are traditionally shipped with {product-title} are being deprecated and replaced by their equivalent Container Storage Interface (CSI) drivers. {product-title} provides automatic migration for in-tree volume plugins to their equivalent CSI drivers.
modules/persistent-storage-csi-migration-overview.adoc modules/persistent-storage-csi-migration-sc.adoc
To change the default storage class, see Changing the default storage class.