To recap, an HA group is a configuration object you create and assign to a traffic group for devices in a device group. An HA group defines health criteria for a resource (such as an application server pool) that the traffic group uses. With an HA group, the BIG-IP system can decide whether to keep a traffic group active on its current device or fail over the traffic group to another device when resources such as pool members fall below a certain level.
First, some prerequisites:
- Basic Setup: Each BIG-IP (v13) is licensed, provisioned and configured to run BIG-IP LTM
- HA Configuration: All BIG-IP devices are members of a sync-failover device group and synced
- Each BIG-IP has a unique virtual server with a unique server pool assigned to it
- All virtual addresses are associated with traffic-group-1
First you go to System>High Availability>HA Group List>and then click the Create button.
Lastly, you would create another HA Group on BIG-IP C as we’ve done on BIG-IP A and BIG-IP B. Once that happens, you’ll have the same set up as this:
Thanks to our TechPubs group for the basis of this article and check out a video demo here.