Cluster general configuration reference

Use the Cluster Configuration management page to administer cluster support for the appliance.

We can view and update the current cluster general configuration:

First Port

The appliance uses a range of 30 ports, starting with the assigned First Port value.

This field is mandatory and cannot be empty. Default is 2020.

The following settings are available only when the Multinode option is selected.

Cluster Identifier

The cluster identifier is the IP address or hostname that other nodes in the cluster will use to communicate with this node. If an IP address is used, it must be a statically configured IP address on the current appliance. If a hostname is used, all appliances in the cluster must be able to resolve the hostname. Prior to the 9.0.4.0 release, the first static management IP address was automatically selected by the appliance as the cluster identifier.

Primary Master

The cluster identifier of the primary master. This field is mandatory and cannot be empty.

If we are configuring the appliance as a stand-alone cluster with only a single node, we can use the local IP address (127.0.0.1).

• If you change this value, we must save and deploy the changes before we can configure the remaining fields.

• To configure other masters, we must first join the appliances to the cluster.

• Add the entries for Primary Master, Secondary Master, Tertiary Master, and Quaternary Master in order. For example, we cannot add a tertiary unless a secondary exists, and we cannot remove a secondary if a tertiary exists.
• Use the Secondary Master, Tertiary Master, and Quaternary Master fields to manage the supplementary masters. We can update these values at any time to demote existing masters or promote new masters.

  When configuring the master nodes, we must adhere to the cluster configuration rules. For information, see Cluster configuration rules.

Secondary Master

The cluster identifier of the secondary master.

Master External Reference Entity

The IP address of an external reference device the primary and secondary masters can use to check the health of the network. This field is required if both the Primary Master and Secondary Master fields are set. Otherwise, it is disabled.

Tertiary Master

The cluster identifier of the tertiary master. We can set this field only if there is a Secondary Master defined.

Quaternary Master

The cluster identifier of the quaternary master. We can set this field only if there is a Tertiary Master defined.

Parent topic: Manage cluster configuration