Chapter 2 Introduction; Overview Of High Availability - Nortel CallPilot Install Manual

Chapter 2
Introduction
In this chapter
"Overview of High Availability" (page 13)
"High Availability hardware" (page 14)
"High Availability network" (page 16)
"AutoStart software" (page 16)
"Failovers" (page 18)
"Limitations" (page 18)
"Reference documents" (page 19)

Overview of High Availability

In a High Availability configuration, a pair of peer CallPilot servers are used
in the place of a single server. Both servers are connected to the same
switch (Meridian 1 or Communication Server 1000 [CS 1000]) and they are
configured so that one CallPilot server is active (that is, processing calls)
and the other server is in standby mode.
The standby server takes over if the active server fails (due to predefined
failure conditions), or if the administrator decides to manually switch over
to the standby server. This process is known as a failover. For more
information, see
To support a High Availability configuration for CallPilot, a combination of
hardware and third-party software is required, as follows:
•
•
Copyright © 2007, Nortel Networks
.
"Failovers" (page
There is an entry in the CallPilot 5.0 keycode for the High Availability
feature.
High Availability is supported only on the 1005r platform. For more
information about the hardware, see
14).
Nortel CallPilot
High Availability: Installation and Configuration
NN44200-311 01.06 Standard
5.0 15 May 2007
18).
"High Availability hardware" (page
13