Novell GROUPWISE 7 - INTEROPERABILITY GUIDE, Руководство пользователя

Страница: 421 / 485

Implementing the Internet Agent in a Microsoft Cluster 421
n
ov
do
cx (e
n)
11
Ju
ly 20
08
2 In the Description field of the Internet Agent domain Identification page, provide a cluster-
specific description of the Internet Agent domain, including its resource group IP address and
the cluster-unique port numbers used by its MTA.
3 Click OK to save the Internet Agent domain description.
4 Select the Internet Agent Domain object to display its contents.
5 Right-click the MTA object, then click Properties .
6 In the Description field of the MTA Identification page, record the domain resource group IP
address and the cluster-unique port numbers used by the MTA.
This information appears on the MTA console, no matter which node in the cluster it is
currently running on.
7 Click OK to save the MTA description.
8 Continue with Recording Cluster-Specific Information about the Internet Agent .
Recording Cluster-Specific Information about the Internet Agent
With the contents of the Internet Agent domain still displayed:
1 Right-click the Internet Agent object, then click Properties .
2 Click GroupWise , then click Identification .
3 In the Description field, record the resource group IP address and the cluster-unique port
numbers used by the Internet Agent.
This information appears on the Internet Agent console, no matter which node in the cluster it
is currently running on.
4 Click OK to save the Internet Agent information.
5 Continue with Knowing What to Expect in an Internet Agent Failover Situation .
43.3.2 Knowing What to Expect in an Internet Agent Failover
Situation
The failover behavior of the MTA for the Internet Agent domain is the same as for an MTA in a
regular domain. See
“Knowing What to Expect in MTA and POA Failover Situations” on page 410 .
Failover of the Internet Agent itself is more complex. The various e-mail clients (POP3, IMAP4,
and LDAP) receive an error message when the server they were connected to becomes unavailable.
Most of the clients do not attempt to reconnect automatically, so the user must exit the e-mail client
and restart it to reestablish the connection after the failover process is complete. Fortunately, the
Internet Agent restarts quickly in its failover location so users can reconnect quickly.
As with the MTA and the POA, manual 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 normal
processing and stops its threads. For a busy Internet Agent, you might need to wait several minutes
for it to shut down properly when you are manually migrating it.