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.

Prerequisites
Sybase recommends that you have Windows Server 2008 installed on all participating nodes in the cluster, irrespective of whether the node is a runtime server tier node or a data tier node. Windows Server 2003 is supported on non-cluster installations only.
Task

Once you have set up the environment and deployed components, perform end-to-end tests that validate the cluster before you make it publically available.

  1. Setting Up the Microsoft Cluster
    Set up the Failover Cluster before you install the Unwired Platform data tier.
  2. Setting Up Data Tier Nodes
    Set up a data tier node using the Unwired Platform installer. The data tier node includes the consolidated database (CDB), cluster database, monitoring database, and messaging database.
  3. Adding a Generic Service to the Data Cluster
    Before you install Unwired Server, you must add a generic server resource for the data tier cluster.
  4. Setting Up Unwired Server Nodes
    After you confirm that the generic service is available for the data tier cluster, install and configure the Unwired Server components.
  5. Installing Third-party Software
    If you are using third-party software with Sybase Unwired Platform, copy the third-party software components (DLLs, JARs, and libraries) to each server in a cluster.
  6. Validating the Cluster
    Once the runtime and data tiers are installed, ensure that these components have been set up correctly.
Parent topic: Clusters
Related concepts
Unwired Server Clusters
Relay Server Clusters