340 GroupWise 7 Interoperability Guidenovdocx (en) 11 July 20082 Click GroupWise > Identification.3 In the Description field, record the secondary IP address associated with the Internet Agentdomain’s cluster resource group.4 Click OK to save the Internet Agent information.5 Continue with Knowing What to Expect in an Internet Agent Failover Situation.33.4.2 Knowing What to Expect in an Internet Agent FailoverSituationThe failover behavior of the MTA for the Internet Agent domain is the same as for an MTA in aregular domain. See Section 14.6.2, “Knowing What to Expect in MTA and POA FailoverSituations,” on page 163.Failover of the Internet Agent itself is more complex. The various clients (POP3, IMAP4, andLDAP) receive an error message that the node is not available. Most of the clients do not attempt toreconnect automatically, so the user must exit the client and restart it to reestablish the connectionafter the failover process is complete. Fortunately, the Internet Agent restarts quickly in its failoverlocation so users can reconnect quickly.As with the MTA and the POA, migration of the Internet Agent takes longer than failover. In fact,the Internet Agent can seem especially slow to shut down properly as it finishes its normalprocessing and stops its threads. For a busy Internet Agent, you might need to wait several minutesfor it to shut down properly.33.5 Internet Agent Clustering WorksheetItem Explanation1) Internet Agent Nodes: List the nodes where you want the Internet Agent to be able to failover. Identify each node by its DNS hostname and the IP address thatit is physically configured with.For more information, see Section 33.1.1, “Planning a ClusterResource Group for the Internet Agent,” on page 326.2) Internet Agent ClusterResource Group:Specify the name of the cluster resource group to hold the resourcesrequired for the Internet Agent.For more information, see Section 15.1.1, “Planning a Domain for theInternet Agent,” on page 168.3) Native Heartbeat Resources: EVMS container File system Secondary IP addressList names for the native Heartbeat resources and the values for theirparameters to be used in the Internet Agent cluster resource group.For more information, see Section 33.1.1, “Planning a ClusterResource Group for the Internet Agent,” on page 326.4) GroupWise Resources: MTA Internet AgentList the names for the GroupWise resources and the values for theirparameters to be used in the Internet Agent cluster resource group.For more information, see Section 33.1.1, “Planning a ClusterResource Group for the Internet Agent,” on page 326
