Cisco Cisco Prime Infrastructure 3.0 백서
© 2015 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.
Page 13 of 83
Failback
When the issues on the server which host the primary Cisco Prime Infrastructure server have been resolved,
failback can be manually initiated. Once this is done, the screen is displayed on the secondary Cisco Prime
Infrastructure server. When you initiate failback, the Cisco Prime Infrastructure database on the secondary Cisco
Prime Infrastructure server and any other files that have changed since the secondary Cisco Prime Infrastructure
server took over Cisco Prime Infrastructure operation are synchronized between the secondary and the primary
Cisco Prime Infrastructure servers. Once database synchronization has been completed, the primary Cisco Prime
Infrastructure JVM is started by the primary Health Monitor (HM). When the primary Cisco Prime Infrastructure JVM
is running, the preceeding screen is displayed on the secondary HM.
Manual/Automatic Options
Automatic Failover
Automatic failover is a much simpler process. The configuration steps are the same except that automatic failover
is selected. Once automatic failover is configured, the network administrator does not need to interact with the
secondary HM in order for the failover operation to take place. Only during failback is human intervention required.
Primary Failure Example - Manual Failover
In this example, the secondary Cisco Prime Infrastructure server was configured with manual failover. For
example, the network administrator is notified through email that the primary Cisco Prime Infrastructure server has
experienced a down condition. The Health Monitor on the secondary Cisco Prime Infrastructure server detects the
failure condition of the primary Cisco Prime Infrastructure server. Because manual failover has been configured,
the network administrator needs to manually trigger the secondary Cisco Prime Infrastructure server to take over
Cisco Prime Infrastructure functionality from the primary Cisco Prime Infrastructure server. This is done if you log in
to the secondary HM. Even though the secondary Cisco Prime Infrastructure server is not running, you can
connect to the secondary HM using the following syntax:
https://<Secondary_PI_IP_Address>:8082/
The secondary HM displays messages in regard to events that are seen. Because manual failover has been
configured, the secondary HM waits for the system administrator to invoke the failover process. Once manual
failover has been chosen, the message is displayed as the secondary Cisco Prime Infrastructure server starts.
Once the failover process has been completed, which means that the Cisco Prime Infrastructure database
replication process is completed and the secondary Cisco Prime Infrastructure JVM process has started, then the
secondary Cisco Prime Infrastructure server is the active Cisco Prime Infrastructure server.