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WebSphere Application Server on z/OS: Qualities, Reasons, and Connectors

Learn about the qualities of the J2EE Application model, reasons for running WebSphere Application Server on z/OS, and connectors to CICS, DB2, and IMS. Explore the integration of web applications on z/OS and the benefits of using WebSphere Application Server.

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WebSphere Application Server on z/OS: Qualities, Reasons, and Connectors

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  1. Chapter 14 WebSphere Application Server on z/OS

  2. Chapter 14 objectives • Be able to: • List the six qualities of the J2EE Application model • Give three reasons for running WebSphere Application Server under z/OS • Name three connectors to CICS, DB2, and IMS

  3. cell CS CGI EIS JMX J2EE SR cluster node Key terms in this chapter

  4. Introduction to Web applications on z/OS • Past: • Many applications are tied to z/OS (CICS, DB2) • New developments made on other platforms • Now: • Integrate both on z/OS

  5. WebSphere Application Server for z/OS • Conform Software Development Kit (SDK) • Interoperates with other subsystems CR = Controller Region SR = Servant Region

  6. WebSphere Application Server for z/OS • Organization based on concepts: • Servers • Nodes (and Node Agents): a logical grouping of WebSphere-managed servers • Cells: a grouping of Nodes • Within the address spaces, concept of CONTAINER

  7. J2EE Application Model in z/OS • Same as on other platforms, following SDK: • Functional • Reliable • Usable • Efficient • Maintainable • Portable

  8. Running WebSphere Application Server for z/OS • Basics of WebSphere on z/OS • Consolidation of workloads • WebSphere for z/OS Security • Continuous availability (see next foils) • Performance

  9. WebSphere on z/OS - continuous availability • WebSphere with Sysplex Distributor

  10. WebSphere on z/OS - continuous availability • Clustering of Server in Cell

  11. WebSphere on z/OS - continuous availability • Vertical and Horizontal Cluster

  12. Running WAS on z/OS - Performance • WebSphere uses three distinct functions of WLM: • Routing • Queuing • Prioritizing

  13. Application Server Configuration on z/OS • Base Server Node

  14. Application Server Configuration on z/OS • Network Deployment Manager

  15. Connectors for Enterprise Information Systems • Some considerations: • Expensive • Must be secured • Need to perform well • Must be monitorable • Methods needed • Quality of devices

  16. Basic Architecture of an connector to an EIS

  17. Mainframe Connectors • CICS Transaction Gateway • IMS Connect • DB2 JDBC

  18. Summary • In this chapter, you learned to: • List the six qualities of the J2EE Application model • List three reasons for running WebSphere Application Server under z/OS • Name three connectors to CICS, DB2, and IMS

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