For resilience, ADC instances are normally deployed as High Availability (HA) pairs. With LoadMaster HA, one instance is active while the other is in standby. In the event of a failure, the standby instance assumes the active role resulting in no service disruption.

To configure high availability on LoadMaster, consult the High Availability documentation.

With metered licensing, HA is essentially free because the HA pair is considered a single unit for billing purposes. Usage traffic is reported separately for both units. Evaluation of HA capabilities is as simple as turning off the primary LoadMaster, which automatically promotes the secondary LoadMaster as the active ADC.