Portal, Express Beta Version 6.1 Operating systems: i5/OS, Linux,Windows

High availability and failover considerations

For production environments failover is critical. Ideally the production configuration will not include a single point of failover. High availability is also critical for networks with high traffic loads. Complete instructions and guidance for complex networks is beyond the scope of this documentation. However the documentation does address key concepts and instructions for setting up production environments.

• Vertical Scaling
  In simplistic terms, multiple nodes on a single server represents a veritcal cluster.
• Horizontal scaling
  In a horizontal cluster, nodes are distributed across multiple servers. WebSphere Network Deployment Manager is primary place for maintaining and configuring the cluster.