You can use System Manager to create high availability (HA) pairs that provide hardware redundancy that is required for nondisruptive operations and fault tolerance.
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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 .