Clusters

Oracle Linux Virtualization Manager creates a default cluster in the default data center during installation. You can configure the default cluster, or set up new appropriately named clusters.

Creating a New Cluster

1. Go to Compute and then select Clusters.

   The Clusters pane opens.

2. Click New.

   The New Cluster dialog box opens with the General tab selected on the sidebar.

3. From the Data Center drop-down list, choose the Data Center to associate with the cluster.
4. For the Name field, enter an appropriate name for the data center.
5. For the Description field, enter an appropriate description for the cluster.
6. From the Management Network drop-down list, choose the network for which to assign the management network role.
7. From the CPU Architecture and CPU Type drop-down lists, choose the CPU processor family and minimum CPU processor that match the hosts that are to be added to the cluster.

   For both Intel and AMD CPU types, the listed CPU models are in logical order from the oldest to the newest. If your cluster includes hosts with different CPU models, choose the oldest CPU model from the list to ensure that all hosts can operate in the cluster.

8. From the Compatibility Version drop-down list, choose the compatibility version of the cluster.

   Note:

   For more information on compatibility versions, see Changing Data Center and Cluster Compatibility Versions After Upgrading.

9. From the Switch Type drop-down list, choose the type of switch to be used for the cluster.

   By default, Linux Bridge is selected from the drop-down list.

10. From the Firewall Type drop-down list, choose the firewall type for hosts in the cluster.

    The firewall types available are either iptables or firewalld. By default, the firewalld option is selected from the drop-down list.

11. The Enable Virt Service check box is selected by default. This check box designates that the cluster is to be populated with virtual machine hosts.
12. (Optional) Review the other tabs to further configure your cluster:
    1. Click the Optimization tab on the sidebar to select the memory page sharing threshold for the cluster, and optionally enable CPU thread handling and memory ballooning on the hosts in the cluster. See Deployment Optimization.
    2. Click the Migration Policy tab on the sidebar menu to define the virtual machine migration policy for the cluster.
    3. Click the Scheduling Policy tab on the sidebar to optionally configure a scheduling policy, configure scheduler optimization settings, enable trusted service for hosts in the cluster, enable HA Reservation, and add a custom serial number policy.
    4. Click the Fencing policy tab on the sidebar to enable or disable fencing in the cluster, and select fencing options.
    5. Click the MAC Address Pool tab on the sidebar to specify a MAC address pool other than the default pool for the cluster.
13. Click OK to create the data center.

    The cluster is added to the virtualization environment and the Cluster - Guide Me menu opens to guide you through the entities that are required to be configured for the cluster to operate.

    You can postpone the configuration of these entities by clicking the Configure Later button. You can resume the configuration of these entities by selecting the respective cluster and clicking More Actions and then choosing Guide Me from the drop-down menu.