Configuring network interfaces requires that you understand the available configurations for takeover and that you configure different types of interfaces (shared, dedicated, and standby) depending on your needs.
Configuring network interfaces for the HA pair
You must configure network interfaces so that if takeover occurs, interfaces on the operating node takes over interfaces on the failed-over node and hosts can still reach data over the network.
Configuring a partner interface in an HA pair
To prepare for a successful takeover in an HA configuration, you can map a network interface to an IP address or to another network interface on the partner node. During a takeover, the network interface on the surviving node assumes the identity of the partner interface.
Configuring partner addresses on different subnets (MetroCluster configurations only)
On MetroCluster configurations, you can configure partner addresses on different subnets. To do this, you must create a separate /etc/mcrc file and enable the cf.takeover.use_mcrc_file option. When taking over its partner, the node uses the partner's /etc/mcrc file to configure partner addresses locally. These addresses will reside on the local subnetwork.