5.3 Enable the “Use for HA Checks” Option
Some guidelines relating to the Use for HA checks option are below:
If you have a physical LoadMaster, you can connect a direct cable on eth1 between both
boxes. Leave the IP configuration blank. Select the Use for HA checks check box.
In a hardware configuration, if a direct cable has been deployed between both units over
eth1 and there are IP addresses set in the interface management screen (and Use for HA
checks is enabled on that interface) this causes problems because the LoadMaster will
think it is a production link and if one of the LoadMasters reboot the other will fail too.
If the Use for HA checks check box is greyed out it means that this is the only interface
configured to be used for HA checks and cannot be deselected.
To enable the Use for HA checks option, follow the steps below:
1. Go to the WUI of the shared IP address.
2. In the main menu, select System Configuration.
3. Select the relevant interface.
4. Select the Use for HA checks check box.
These steps can be repeated if the Use for HA checks option needs to be enabled on more than
one interface.
5.4 Test Failover
Now that the HA units have been set up, failover can be tested if needed. The easiest way to do
this is to reboot the active unit. To reboot the unit, follow the steps below:
1. Log in to the IP address of the active unit.
2. In the main menu, click Local Administration.
3. Select System Reboot.
Figure 5-14: System Reboot screen
4. Click the Reboot button.
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