What is the minimum bandwidth requirement for replicating volumes between PowerFlex clusters?

100 Mbps: While PowerFlex replication is highly efficient and only sends unique data chunks (deltas), the supported minimum reliable bandwidth for a WAN link between clusters is typically 100 Mbps.

Reasoning: Below this speed, even moderate change rates in a production database would likely cause the replication journal to fill up faster than data can be drained to the remote site. This would lead to a "Buffer Full" state, causing the replication to pause or the system to lose its Recovery Point Objective (RPO) compliance.