// d) the storage driver supports dynamic volume provisioning through
	//    a PersistentVolumeClaim (see EphemeralVolumeSource for more
	//    information on the connection between this volume type
	//    and PersistentVolumeClaim).
	//
	// Use PersistentVolumeClaim or one of the vendor-specific
	// APIs for volumes that persist for longer than the lifecycle
	// of an individual pod.
	//

  tracking are needed,\nc) the storage driver is specified through a storage class, and d) the storage driver supports dynamic volume provisioning through\n   a PersistentVolumeClaim (see EphemeralVolumeSource for more\n   information on the connection between this volume type\n   and PersistentVolumeClaim).\n\nUse PersistentVolumeClaim or one of the vendor-specific APIs for volumes that persist for longer than the lifecycle of an individual pod.\n\nUse CSI for light-weight local ephemeral volumes...

	// persistentVolumeClaimVolumeSource represents a reference to a
	// PersistentVolumeClaim in the same namespace.
	// More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#persistentvolumeclaims
	// +optional
	PersistentVolumeClaim *PersistentVolumeClaimVolumeSource `json:"persistentVolumeClaim,omitempty" protobuf:"bytes,10,opt,name=persistentVolumeClaim"`

  // d) the storage driver supports dynamic volume provisioning through
  //    a PersistentVolumeClaim (see EphemeralVolumeSource for more
  //    information on the connection between this volume type
  //    and PersistentVolumeClaim).
  //
  // Use PersistentVolumeClaim or one of the vendor-specific
  // APIs for volumes that persist for longer than the lifecycle
  // of an individual pod.

		}
		// A PersistentVolumeClaimSource should not reference a created PVC. That doesn't
		// make sense.
		if vol.PersistentVolumeClaim != nil && allCreatedPVCs.Has(vol.PersistentVolumeClaim.ClaimName) {
			allErrs = append(allErrs, field.Invalid(idxPath.Child("persistentVolumeClaim").Child("claimName"), vol.PersistentVolumeClaim.ClaimName,
				"must not reference a PVC that gets created for an ephemeral volume"))
		}
	}

  // d) the storage driver supports dynamic volume provisioning through
  //    a PersistentVolumeClaim (see EphemeralVolumeSource for more
  //    information on the connection between this volume type
  //    and PersistentVolumeClaim).
  //
  // Use PersistentVolumeClaim or one of the vendor-specific
  // APIs for volumes that persist for longer than the lifecycle
  // of an individual pod.

	if err := s.AddGeneratedConversionFunc((*v1.PersistentVolumeClaim)(nil), (*core.PersistentVolumeClaim)(nil), func(a, b interface{}, scope conversion.Scope) error {
		return Convert_v1_PersistentVolumeClaim_To_core_PersistentVolumeClaim(a.(*v1.PersistentVolumeClaim), b.(*core.PersistentVolumeClaim), scope)
	}); err != nil {
		return err
	}

  tracking are needed,\nc) the storage driver is specified through a storage class, and d) the storage driver supports dynamic volume provisioning through\n   a PersistentVolumeClaim (see EphemeralVolumeSource for more\n   information on the connection between this volume type\n   and PersistentVolumeClaim).\n\nUse PersistentVolumeClaim or one of the vendor-specific APIs for volumes that persist for longer than the lifecycle of an individual pod.\n\nUse CSI for light-weight local ephemeral volumes...

  * This is something to pay close attention to if you’ve been using Kubernetes for a while, because it changes the default behavior of PersistentVolumeClaim objects on these clouds.
  * Marking a StorageClass as default makes it so that even a PersistentVolumeClaim without a StorageClass specified will trigger dynamic provisioning (instead of binding to an existing pool of PVs).

- Better pod events ("waiting for ephemeral volume controller to create the persistentvolumeclaim"" instead of "persistentvolumeclaim not found") when using generic ephemeral volumes. ([#104605](https://github.com/kubernetes/kubernetes/pull/104605), [@pohly](https://github.com/pohly))