1 Introduction
The LoadMaster system can be deployed as a single unit or in an active/standby dual-unit
configuration (HA). HA allows two physical or virtual machines to become one logical device.
Only one of these units is active and handling traffic at any one time. One unit is active and the
other is a hot standby (passive). This provides redundancy and resiliency, meaning if one
LoadMaster goes down for any reason, the hot standby can become active, therefore avoiding
any downtime.
HA in the LoadMaster for Azure product works a different way to that of a
regular LoadMaster. For more information and instructions on how to
configure HA on the LoadMaster for Azure, refer to the HA for Azure,
Feature Description document.
Three IP addresses are needed per active interface; one for the active unit, one for the passive
unit and one IP address for the shared interface.
1.1 Intended Audience
This document is intended to be read by anyone who is interested in learning about the HA
feature in the KEMP LoadMaster.
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