SmartSync eliminates the lock-in of source-target relationships. Re-baselining is not required for source-target clusters containing an earlier dataset version. For example, a typical Disaster Recovery (DR) topology includes 3 PowerScale clusters A, B, and C in a cascade. Cluster A replicates to B, and B replicates to C. If cluster B is unavailable, the cluster A to C policy would not require a new baseline, as displayed in Figure 2. The need for baselining is eliminated by introducing parent-child relationships in the dataset. A handshake compares the datasets of clusters A and C, allowing only the changed data blocks to be transferred, minimizing replication overhead. For environments with large datasets, eliminating re-baselining minimizes RPO and RTO times and further strengthens DR readiness.