.. _Managing Compute Nodes:

Managing Compute Nodes
----------------------

.. include:: /includes/enabling-ha-part1.inc

Nodes in the compute cluster are shown on the **NODES** tab.

Clicking a node, you can see the following information about it:

-  node CPU and RAM usage,
-  node name, status, and IP address,
-  hosted virtual machines and their resource consumption.

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   .. image:: /images/stor_image84_2_ac.png
      :align: center
      :class: align-center

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   .. image:: /images/stor_image84_2_vz.png
      :align: center
      :class: align-center

The next subsections describe how to add nodes to and remove nodes from the compute cluster.

.. _Adding Nodes to Compute Cluster:

Adding Nodes to Compute Cluster
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

.. include:: /includes/managing-compute-nodes-part1.inc

To add one or more nodes to your compute cluster, do the following:

#. Click **Add node** on the **NODES** tab. The **Add node** window will open.

#. If required, configure network on each node not marked green: click the cogwheel icon, assign networks with the compute-related traffic types to node NICs, and click **Apply**.

#. Select nodes and click **Add**.

   .. only:: ac

      .. image:: /images/stor_image84_3_ac.png
         :align: center
         :class: align-center

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      .. image:: /images/stor_image84_3_vz.png
         :align: center
         :class: align-center

The added nodes will appear on the **NODES** tab.

If several nodes are in the management node HA group, they all must be added to the compute cluster.

.. _Releasing Nodes from Compute Cluster:

Releasing Nodes from Compute Cluster
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

.. include:: /includes/managing-compute-nodes-part1.inc

To release one or more nodes from the compute cluster, do the following:

#. On the **NODES** tab, either

   - select the nodes and click **Release nodes** above the list, or
   - click the ellipsis icon next to a node and select **Release**, or
   - click a node to open its details, then click **Release node** on the top toolbar.

#. In the **Release node** window, confirm the action by clicking **Release**.

The selected nodes will disappear from the **NODES** tab.

If the node to be released has VMs on it, they must be migrated to other nodes first.