You can relocate the Adaptive Server resource group back to the primary node when the node recovers and can successfully host the Adaptive Server resources group. This is called failback. A failback in an active-passive configuration is the same as failing over to the primary node; stopping Adaptive Server and its resources on the current node, then relocating and starting them on the primary node. A failback is not required, but can be performed solely for administration purposes. If fail back is not done, the recovered primary node acts as secondary node until another fail over.
