CLUSTERS
To use SCR, you must have at least two IBM® Lotus® Domino® servers in a cluster. If your cluster contains any combination of current-release Domino servers and servers running releases earlier than 8, for the pre-Domino 8 servers, regular cluster replication is used to replicate between current and previous-release servers.
Domino enables SCR when the following sequence of events occurs:
As a change occurs to a clustered server's database, the specific change is "captured" and the change is immediately queued for replication to the source server's Domino (current-release) cluster mates that have a replica of the database. When the destination cluster-mates receive the change, they apply it to their replicas.
The performance benefits of streaming cluster replication are: