Finish CSI documentation

Also fix mistake with ExpandInUsePersistentVolumes documented as beta
kubernetes · Mar 18, 2019 · 8a3769b · 8a3769b
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diff --git a/content/en/docs/concepts/storage/persistent-volumes.md b/content/en/docs/concepts/storage/persistent-volumes.md
@@ -179,7 +179,6 @@ However, the particular path specified in the custom recycler pod template in th
 
 ### Expanding Persistent Volumes Claims
 
-{{< feature-state for_k8s_version="v1.8" state="alpha" >}}
 {{< feature-state for_k8s_version="v1.11" state="beta" >}}
 
 Support for expanding PersistentVolumeClaims (PVCs) is now enabled by default. You can expand
@@ -196,8 +195,6 @@ the following types of volumes:
 * FlexVolumes
 * CSI
 
-CSI support is in alpha in 1.14 release and requires enabling `ExpandCSIVolumes` feature gate.
-
 You can only expand a PVC if its storage class's `allowVolumeExpansion` field is set to true.
 
 ``` yaml
@@ -218,6 +215,14 @@ To request a larger volume for a PVC, edit the PVC object and specify a larger
 size. This triggers expansion of the volume that backs the underlying `PersistentVolume`. A
 new `PersistentVolume` is never created to satisfy the claim. Instead, an existing volume is resized.
 
+#### CSI Volume expansion
+
+{{< feature-state for_k8s_version="v1.14" state="alpha" >}}
+
+CSI volume expansion requires enabling `ExpandCSIVolumes` feature gate and
+running external resize controller. Please see [external resize controller](https://github.com/kubernetes-csi/external-resizer/) for more details.
+
+
 #### Resizing a volume containing a file system
 
 You can only resize volumes containing a file system if the file system is XFS, Ext3, or Ext4.

diff --git a/content/en/docs/reference/command-line-tools-reference/feature-gates.md b/content/en/docs/reference/command-line-tools-reference/feature-gates.md
@@ -79,8 +79,8 @@ different Kubernetes components.
 | `DynamicVolumeProvisioning` | `true` | Alpha | 1.3 | 1.7 |
 | `DynamicVolumeProvisioning` | `true` | GA | 1.8 | |
 | `EnableEquivalenceClassCache` | `false` | Alpha | 1.8 | |
+| `ExpandCSIVolumes` | `false` | Alpha | 1.14 | | |
 | `ExpandInUsePersistentVolumes` | `false` | Alpha | 1.11 | 1.13 | |
-| `ExpandInUsePersistentVolumes` | `true` | Beta | 1.14 | |
 | `ExpandPersistentVolumes` | `false` | Alpha | 1.8 | 1.10 |
 | `ExpandPersistentVolumes` | `true` | Beta | 1.11 | |
 | `ExperimentalCriticalPodAnnotation` | `false` | Alpha | 1.5 | |