Managing application CRG takeover of IP addresses

You can manage application CRG takeover of IP addresses by using cluster resource services. You can also manage them manually.

You can manage the application takeover IP address that is associated with an application CRG in two ways. The easiest way, which is the default, is to let cluster resource services manage the takeover IP address. This method directs cluster resource services to create the takeover IP address on all nodes in the recovery domain, including nodes subsequently added to the recovery domain. When this method is selected, the takeover IP address cannot currently be defined on any node in the recovery domain.

The alternative way is to manage the takeover IP addresses yourself. This method directs cluster resource services to not take any steps to configure the takeover IP address; the user is responsible for configuration. You must add the takeover IP address on all nodes in the recovery domain (except on replicate nodes) before starting the cluster resource group. Any node to be added to the recovery domain of an active CRG must have the takeover IP address configured before being added.