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High Availability (HA)
Feature Description
7
HA Disaster Recovery Process (Replacing a Defective
Unit)
In a disaster recovery scenario you may need to replace one of the HA units. Prerequisites and
installation steps for this scenario are provided in the sections below.
7.1
Prerequisites
There are some prerequisites that are needed before replacing a HA unit in a disaster recovery
situation. These are listed below:
The new LoadMaster should be licensed:
Verify that the license is valid for the relevant features
Gather the following data:
IP address of the LoadMaster
IP address of the partner
Shared IP address
7.2
Installation
Installation of a new HA unit should be performed during a maintenance window. Allow
approximately 20 minutes for the installation.
Follow the steps below:
1.
Ensure that the HA ports are connected and both machines can reach each other by
using the
Ping
option in
System Configuration > Logging Options > System Log Files >
Debug Options
.
2.
Connect to the WUI on the local (machine) IP address of the new LoadMaster.
3.
In the main menu of the WUI, select
System Configuration > Miscellaneous Options >
HA Parameters
.
Figure 7-1: HA Mode
4.
Select the relevant
HA Mode
(first or second).
5.
Click
OK
.
6.
Click
OK
again.
Figure 7-2: Network Interface
