NetApp
SnapMirror : Managing SnapMirror relationships : Breaking SnapMirror relationships

Breaking SnapMirror relationships
If the SnapMirror source becomes unavailable or if you wish to use the SnapMirror destination for writing as well as reading, you can break the SnapMirror relationship. You can use the Protection window to break a SnapMirror relationship and make the destination volume or qtree writable.
Before you begin 
The SnapMirror destination must be quiesced.
Steps 
1.
From the Home tab, double-click the appropriate storage system.
2.
In the navigation pane, click SnapMirror.
3.
Select the SnapMirror relationship that you want to break.
4.
Click Operations > Break.
5.
Select the confirmation check box and click Break.