Designing the Landscape

SAP Mobile Platform supports a variety of system design options to suit deployments ranging from a personal system on a single workstation to full-scale, clustered production systems.

1. Using the requirements you gathered during the assessment stage, determine factors that might influence your design choice.
   Major factors that affect system design choices are:

   • Deployment scenario (personal or enterprise system, development or production system)

   • Balancing system cost and complexity, with scalability and performance

   • Required SAP Mobile Platform functionality and capabilities, some of which are limited to either clustered or nonclustered system designs

2. Review the landscape designs recommended by SAP.
3. Create your own instance of that design, by choosing:
   • The hosts you require
   • Components installed on those hosts
   • System interoperability paths
   • EIS connection points
   • Security connection points

• Single-Server Installation
  Single-server installations set up a complete SAP Mobile Platform system on a single server. This configuration is suitable for a low-volume production system where continuous uptime is not critical. With SAP Mobile SDK installed on the same system, a single-server installation provides a self-contained developer workstation.
• Simple Load-Balancing Cluster
  A simple load-balancing cluster installs SAP Mobile Platform Runtime components onto multiple servers that are configured to share the workload, with additional (optional) SAP Mobile Server nodes installed as scale-out nodes. With two SAP Mobile Server application server nodes, the system continues to operate if either application server node fails.
• Standard Microsoft Failover Cluster
  Installing two data tier nodes in a Microsoft Failover Cluster ensures that the system can continue to operate if the active data tier node fails. Adding this capability to the load-balancing cluster for SAP Mobile Server nodes ensures there is no single point of failure in the system.
• Microsoft Failover Cluster with Shared Hosts
  Placing one data tier and one SAP Mobile Server node, installed as an application server, on each of two physical servers, is a modification of the standard Microsoft Failover Cluster. This is the minimum hardware configuration that ensures there is no single point of failure in the system.