On the source system, enter the following command:snapmirror release {source_volume | qtree_path}[dest_system:]{dest_volume | qtree_path}
source_volume or qtree_path is the name of the source volume or path to the qtree that you want to release from the destination.
dest_system is the name of the system where the destination is located.
dest_volume or qtree_path is the name of the volume or path to the qtree that is the destination.
If you do not enter the name of the destination system, SnapMirror uses the name of the system on which you entered the command.
Example
For a SnapMirror volume relationship
systemA> snapmirror release vol0 systemB:vol2
Example
For a SnapMirror qtree relationship
systemA> snapmirror release vol/vol1/qtree2 systemB:/vol/vol2/qtree5
SnapMirror frees all resources on the source system that had been dedicated to the SnapMirror relationship.