A SnapMirror license is required on both the source and destination clusters. A SnapVault license is not required if a SnapMirror license is already installed.
Starting with ONTAP 9.3, a new DP_Optimized (DPO) license is available that supports an increased number of volumes and peer relationships. A SnapMirror license is still required on both the source and destination.
On the following platforms, a DPO license is required only on the destination cluster. Otherwise, it is required on both the source and destination: