Patent attributes
An apparatus in one embodiment comprises a storage system having a plurality of storage devices. The storage system is associated with a target site and configured to participate in a cycle-based asynchronous replication process with a storage system of a source site. The storage system of the target site is configured to receive from the storage system of the source site, in respective ones of a plurality of cycles of the cycle-based asynchronous replication process, corresponding sets of differential data representing respective deltas between pairs of source site snapshots for respective pairs of the cycles. The storage system of the target site utilizes the sets of differential data received in the respective ones of the cycles to update respective target site snapshots for those cycles. Over multiple cycles, the storage system of the target site verifies that respective different portions of designated target site and source site snapshots are equivalent.
