LIF failover refers to the automatic migration of a LIF in response to a link failure on the LIF's current network port. When such a port failure is detected, the LIF is migrated to a working port.
A failover group contains a set of network ports (physical, VLANs, and interface groups) on one or more nodes. A LIF can subscribe to a failover group. The network ports that are present in the failover group define the failover targets for the LIF.
You can manage failover groups by adding ports to them, removing ports from them, renaming them, and displaying information about them.