A source replication server can replicate client node data
to only one target replication server at a time. However, a single
target replication server can be the target for multiple source replication
servers. A client node cannot back up, archive, or migrate data to
a server where the node is a target node for replication.
The example configuration in the following figure illustrates the
relationships between source and target replication servers in a network.
Figure 1. Networked configuration
of replication servers
Figure 1 depicts
the following data movements:
- PHOENIX_SRV and DALLAS_SRV replicate client node data to each
other. Each server is both a source and a target for replicated client-node
data.
- NODE1 and NODE2 are defined to PHOENIX_SRV. The nodes are configured
for replication. During store operations, NODE1 and NODE2 send their
data to PHOENIX_SRV. The data is then replicated to DALLAS_SRV.
- NODE3 is defined to DALLAS_SRV. The node is configured for replication.
During store operations, NODE3 sends its data to DALLAS_SRV. The data
is then replicated to PHOENIX_SRV.
- Data belonging to NODE4 and NODE5 is replicated to DALLAS_SRV.
Data that is replicated to a target server cannot be replicated
again. For example, the data that belongs to NODE4 cannot be replicated
to PHOENIX_SRV from DALLAS_SRV.