Administrator Guide

Introduction to synchronous replication
8 Dell EMC SC Series: Synchronous Replication and Live Volume | CML1064
1.2.3 Licensing
Replication licensing, which includes synchronous replication and asynchronous replication, is required for
each SC Series array participating in volume replication. Additionally, a Live Volume license for each array is
required for all Live Volume features. With Dell EMC SC All-Flash storage arrays such as the SC5020F and
SC7020F, the replication and Live Volume licensing are included.
1.2.4 Supported replication transport
SC Series systems support array-based replication using either Fibre Channel (FC) or iSCSI connectivity. A
dedicated network is not required but a method of isolation for performance or security should be provided.
Synchronous replication typically requires more bandwidth and less latency than asynchronous replication
due to sensitivity of applications and end users where the impacts of high latency will be felt.