HP StoreOnce Backup System Concepts and Configuration Guidelines (BB877-90913, November 2013)

Figure 57 Balancing many-to-one replication sources across all available nodes
Replication and load balancing
The specification for a B6200 service set is that it can accept up to a maximum of 48 concurrent
replication streams from external sources. If more than 48 streams are replicating into a B6200
node, some streams will be put on hold until a spare “replication slot” becomes available.
Being a replication target is more demanding of resources than being a replication source, this is
why we recommend allocating dedicated replication targets to specific nodes.
The example detailed on the following page shows a full system approach and is a good overview
of what is required.
Note that:
• Each service set on each node is relatively at the same load (load balancing is a manual
process)
• Each node has a single function, VTL backup targets node, NAS backup targets node,
Replication target. This makes management and load assessment easier
104 Implementing replication with the HP B6200 Backup system