Nortel Contact Center Multimedia Installation And Maintenance Manual page 973

October 2007
If Server A fails to process Multimedia contacts, you can manually switch
Multimedia processing to Server B. In the following diagram, Server B is the
Active server and Server A is not in use.
The Standby server reads and applies updates from the Active server constantly.
If the system is busy, the Standby server can be a few seconds behind the Active
server. This means that, in the event of a failure, you can lose a small amount of
data.
You can make the Standby server process contacts for the following reasons:
The Active server has a hardware or network failure. To configure the
Standby server in a failure, see Section A: "Switching to Standby when
Primary server fails," on page 975.
The Active server requires maintenance, preventing it from running the
Contact Center Manager Server application. To configure the Standby
server during maintenance of the Active server, see Section B: "Switching
to Standby for a planned change," on page 993.
After Server A is back online, you can restore it to active mode, and restore
Server B to standby mode. For instructions about restoring Server A to active
mode, see Section C: "Restoring CCMM servers to original configuration," on
page 1009.
If you decide to maintain Server B as the Active server, and want to use Server A
or another server as the Standby server, you must install and configure the
Standby server software. For instructions about installing and configuring the
Standby server software, see Chapter 8, "Installing the Standby server."
Installation and Maintenance Guide
Changing the Active server
973