You can use System Manager to create high availability (HA) pairs that provide hardware redundancy that is required for nondisruptive operations and fault tolerance.
High Availability window
The High Availability window provides a pictorial representation of the high-availability (HA) state, interconnect status, and takeover or giveback status of all of the HA pairs in ONTAP. You can also manually initiate a takeover operation or giveback operation by using the High Availability window.