The local node returns ownership of the aggregates and volumes to the partner node after any issues on the partner node are resolved or maintenance is complete. In addition, the local node returns ownership when the partner node has booted up and giveback is initiated either manually or automatically.
The following process takes place in a normal giveback. In this discussion, node A has taken over node B. Any issues on Node B have been resolved and it is ready to resume serving data.
This initiates the process of returning ownership of the node B's aggregates and volumes from node A back to node B.
You can monitor the progress of the giveback with the storage failover show-giveback command.
I/O resumes for each aggregate once giveback is complete for that aggregate, therefore reducing the overall outage window of each aggregate.