HP Storage Mirroring Software - Manual (Page 511)

Failback and restore Page 510 of 677
9. Because there are no users accessing the target data, the restoration process is
complete when the Mirror Status is Idle. When the Mirror Status is Idle,
disconnect the restoration connection from the target.
10. Your original connection on the source, if it still exists in the Replication Console,
will be in a Mirror Required state. Right-click the connection and select Mirror,
Start. Select the type of mirror you wish to perform and click OK. When prompted
to start replication, click Yes.
11. Once you have restarted the mirror and replication, you can allow users to
reconnect to the source.