Update content

umn/source/add-ons/autoscaler.rst

@@ -49,6 +49,7 @@ Notes and Constraints
 
 -  Only clusters of v1.9.10-r2 and later support autoscaler.
 -  Ensure that there are sufficient resources for installing the add-on.
+-  The default node pool does not support auto scaling. For details, see :ref:`Description of DefaultPool <cce_01_0081__section16928123042115>`.
 
 .. _cce_01_0154__section15573161754711:
 

umn/source/add-ons/everest_system_resource_add-on_mandatory.rst

@@ -15,7 +15,7 @@ Everest is a cloud-native container storage system. Based on Container Storage I
 Notes and Constraints
 ---------------------
 
--  If your cluster is upgraded from v1.13 to v1.15, :ref:`storage-driver <cce_01_0127>` is replaced by everest (v1.1.6 or later) for container storage. The takeover does not affect the original storage functions. For details about CSI and FlexVolume, see :ref:`Differences Between CSI and FlexVolume Plug-ins <cce_01_0306__section86752053123513>`.
+-  If your cluster is upgraded from v1.13 to v1.15, :ref:`storage-driver <cce_01_0127>` is replaced by everest (v1.1.6 or later) for container storage. The takeover does not affect the original storage functions. For details about CSI and FlexVolume, see :ref:`Differences Between CSI and FlexVolume Plug-ins <cce_01_0307__en-us_topic_0000001199181198_section1690993510317>`.
 -  In version 1.2.0 of the everest add-on, **key authentication** is optimized when OBS is used. After the everest add-on is upgraded from a version earlier than 1.2.0, you need to restart all workloads that use OBS in the cluster. Otherwise, workloads may not be able to use OBS.
 -  By default, this add-on is installed in **clusters of v1.15 and later**. For clusters of v1.13 and earlier, the :ref:`storage-driver <cce_01_0127>` add-on is installed by default.
 

umn/source/add-ons/index.rst

@@ -12,6 +12,7 @@ Add-ons
 -  :ref:`autoscaler <cce_01_0154>`
 -  :ref:`metrics-server <cce_01_0205>`
 -  :ref:`gpu-beta <cce_01_0141>`
+-  :ref:`volcano <cce_01_0193>`
 
 .. toctree::
    :maxdepth: 1
@@ -24,3 +25,4 @@ Add-ons
    autoscaler
    metrics-server
    gpu-beta
+   volcano

umn/source/add-ons/storage-driver_system_resource_add-on_mandatory.rst

@@ -15,7 +15,7 @@ storage-driver functions as a standard Kubernetes FlexVolume plug-in to allow co
 Notes and Constraints
 ---------------------
 
--  For clusters created in CCE, Kubernetes v1.15.11 is a transitional version in which the FlexVolume plug-in (storage-driver) is compatible with the CSI plug-in (:ref:`everest <cce_01_0066>`). Clusters of v1.17 and later versions do not support FlexVolume any more. You need to use the everest add-on. For details about CSI and FlexVolume, see :ref:`Differences Between CSI and FlexVolume Plug-ins <cce_01_0306__section86752053123513>`.
+-  For clusters created in CCE, Kubernetes v1.15.11 is a transitional version in which the FlexVolume plug-in (storage-driver) is compatible with the CSI plug-in (:ref:`everest <cce_01_0066>`). Clusters of v1.17 and later versions do not support FlexVolume any more. You need to use the everest add-on. For details about CSI and FlexVolume, see :ref:`Differences Between CSI and FlexVolume Plug-ins <cce_01_0307__en-us_topic_0000001199181198_section1690993510317>`.
 -  The FlexVolume plug-in will be maintained by Kubernetes developers, but new functionality will only be added to CSI. You are advised not to create storage that connects to the FlexVolume plug-in (storage-driver) in CCE any more. Otherwise, the storage resources may not function normally.
 -  This add-on can be installed only in **clusters of v1.13 or earlier**. By default, the :ref:`everest <cce_01_0066>` add-on is installed when clusters of v1.15 or later are created.