Replication source + Replication target + Mirror snapshot storage unit
An SLP can use a snapshot storage unit that represents a disk pool that contains volumes that have the following properties: Replication source, Replication target, and Mirror.
An operation with these properties can serve as both:
A Replication source in a cascading configuration.
A mirrored Replication target in a cascading configuration. A mirrored Replication target must have a forced retention type.