Clusters

As an organization grows, Unwired Platform administrators need to create a scalable IT infrastructure using clusters. Clustering creates redundant Unwired Platform components on your network to provide a highly scalable and available system architecture.

Organizations can seamlessly achieve high availability and scalability by adding more or redundant instances of core components. Redundant instances of critical components provide transparent failover.

In a production environment, the Unwired Platform deployment typically uses at least one relay server. The connections to relay servers can be configured within a cluster instance from Sybase Control Center.

• Nodes and Cluster Size
  A node is a host upon which one or more components have been installed. A cluster consists of Unwired Platform components running on one or more nodes that work together as a single, continuously available, system in order to provide seamless application management, device management, and data access to users.
• Cluster Types
  Clusters are groups of similar components that work together to service client requests.
• Shared Development Environments
  Mobility projects in medium-to-large organizations usually span multiple development teams, environments, and geographies. In a shared development environment, organizations typically opt for a single-node environment, but may also choose to use domains to partition the environment.
• Fault-Tolerant Production Environments
  You can design for fault-tolerance by introducing component redundancy in your environment.
• Implementing an N+2-node Cluster for Optimal Redundancy
  An N+2 cluster is the recommended cluster for achieving an optimal level of redundancy in your Unwired Platform architecture.